9315445140 has 72 divisors (see below), whose sum is σ = 28317612960. Its totient is φ = 2478777024.

The previous prime is 9315445129. The next prime is 9315445141. The reversal of 9315445140 is 415445139.

It is a happy number.

9315445140 is a `hidden beast` number, since 93 + 1 + 54 + 4 + 514 + 0 = 666.

9315445140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9315445095 and 9315445104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9315445141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28651 + ... + 139469.

It is an arithmetic number, because the mean of its divisors is an integer number (393300180).

Almost surely, 2^9315445140 is an apocalyptic number.

9315445140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9315445140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14158806480).

9315445140 is an abundant number, since it is smaller than the sum of its proper divisors (19002167820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9315445140 is a wasteful number, since it uses less digits than its factorization.

9315445140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111301 (or 111296 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 9315445140 is about 96516.5537097134. The cubic root of 9315445140 is about 2104.1072406147.

The spelling of 9315445140 in words is "nine billion, three hundred fifteen million, four hundred forty-five thousand, one hundred forty".