1451545140 has 192 divisors, whose sum is σ = 4323352320. Its totient is φ = 363479040.

The previous prime is 1451545127. The next prime is 1451545163. The reversal of 1451545140 is 415451541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1451545098 and 1451545107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10595152 + ... + 10595288.

It is an arithmetic number, because the mean of its divisors is an integer number (22517460).

Almost surely, 2^1451545140 is an apocalyptic number.

1451545140 is a gapful number since it is divisible by the number (10) 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 1451545140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2161676160).

1451545140 is an abundant number, since it is smaller than the sum of its proper divisors (2871807180).

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

1451545140 is a wasteful number, since it uses less digits than its factorization.

1451545140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 1451545140 is about 38099.1488093894. The cubic root of 1451545140 is about 1132.2530919901.

Adding to 1451545140 its reverse (415451541), we get a palindrome (1866996681).

The spelling of 1451545140 in words is "one billion, four hundred fifty-one million, five hundred forty-five thousand, one hundred forty".