113987912 has 8 divisors (see below), whose sum is σ = 213727350. Its totient is φ = 56993952.

The previous prime is 113987911. The next prime is 113987917. The reversal of 113987912 is 219789311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67010596 + 46977316 = 8186^2 + 6854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 113987912.

It is not an unprimeable number, because it can be changed into a prime (113987911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7124237 + ... + 7124252.

Almost surely, 2^113987912 is an apocalyptic number.

It is an amenable number.

113987912 is a deficient number, since it is larger than the sum of its proper divisors (99739438).

113987912 is a wasteful number, since it uses less digits than its factorization.

113987912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14248495 (or 14248491 counting only the distinct ones).

The product of its digits is 27216, while the sum is 41.

The square root of 113987912 is about 10676.5121645601. The cubic root of 113987912 is about 484.8636198536.

The spelling of 113987912 in words is "one hundred thirteen million, nine hundred eighty-seven thousand, nine hundred twelve".