113102640 has 120 divisors (see below), whose sum is σ = 434118048. Its totient is φ = 25850880.

The previous prime is 113102629. The next prime is 113102653. The reversal of 113102640 is 46201311.

It is a happy number.

113102640 is a `hidden beast` number, since 1 + 13 + 10 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6181 + ... + 16260.

Almost surely, 2^113102640 is an apocalyptic number.

113102640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113102640 is an abundant number, since it is smaller than the sum of its proper divisors (321015408).

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

113102640 is a wasteful number, since it uses less digits than its factorization.

113102640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22467 (or 22458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 113102640 is about 10634.9724964383. The cubic root of 113102640 is about 483.6051466222.

Adding to 113102640 its reverse (46201311), we get a palindrome (159303951).

The spelling of 113102640 in words is "one hundred thirteen million, one hundred two thousand, six hundred forty".