113887165 has 32 divisors (see below), whose sum is σ = 166212864. Its totient is φ = 73128960.

The previous prime is 113887129. The next prime is 113887171. The reversal of 113887165 is 561788311.

It is not a de Polignac number, because 113887165 - 2²¹ = 111790013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 164470 + ... + 165160.

It is an arithmetic number, because the mean of its divisors is an integer number (5194152).

Almost surely, 2^113887165 is an apocalyptic number.

It is an amenable number.

113887165 is a deficient number, since it is larger than the sum of its proper divisors (52325699).

113887165 is a wasteful number, since it uses less digits than its factorization.

113887165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997.

The product of its digits is 40320, while the sum is 40.

The square root of 113887165 is about 10671.7929608853. The cubic root of 113887165 is about 484.7207305690.

The spelling of 113887165 in words is "one hundred thirteen million, eight hundred eighty-seven thousand, one hundred sixty-five".