63613140 has 96 divisors (see below), whose sum is σ = 192205440. Its totient is φ = 15667200.

The previous prime is 63613127. The next prime is 63613141. The reversal of 63613140 is 4131636.

63613140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 63613140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63613141) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 46060 + ... + 47420.

It is an arithmetic number, because the mean of its divisors is an integer number (2002140).

Almost surely, 2^63613140 is an apocalyptic number.

63613140 is a gapful number since it is divisible by the number (60) 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 63613140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96102720).

63613140 is an abundant number, since it is smaller than the sum of its proper divisors (128592300).

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

63613140 is a wasteful number, since it uses less digits than its factorization.

63613140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 63613140 is about 7975.7846009029. The cubic root of 63613140 is about 399.1924122691.

Adding to 63613140 its reverse (4131636), we get a palindrome (67744776).

The spelling of 63613140 in words is "sixty-three million, six hundred thirteen thousand, one hundred forty".