112157865 has 24 divisors (see below), whose sum is σ = 201609408. Its totient is φ = 59816880.

The previous prime is 112157863. The next prime is 112157869. The reversal of 112157865 is 568751211.

112157865 is a `hidden beast` number, since 1 + 1 + 21 + 578 + 65 = 666.

112157865 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 112157865 - 2¹ = 112157863 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (112157863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44941 + ... + 47370.

It is an arithmetic number, because the mean of its divisors is an integer number (8400392).

Almost surely, 2^112157865 is an apocalyptic number.

112157865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

112157865 is a deficient number, since it is larger than the sum of its proper divisors (89451543).

112157865 is an frugal number, since it uses more digits than its factorization.

112157865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92331 (or 92319 counting only the distinct ones).

The product of its digits is 16800, while the sum is 36.

The square root of 112157865 is about 10590.4610381229. The cubic root of 112157865 is about 482.2548209817.

The spelling of 112157865 in words is "one hundred twelve million, one hundred fifty-seven thousand, eight hundred sixty-five".