112910921 has 4 divisors (see below), whose sum is σ = 113417472. Its totient is φ = 112404372.

The previous prime is 112910909. The next prime is 112910927. The reversal of 112910921 is 129019211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112910921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112910927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252941 + ... + 253386.

It is an arithmetic number, because the mean of its divisors is an integer number (28354368).

Almost surely, 2^112910921 is an apocalyptic number.

It is an amenable number.

112910921 is a deficient number, since it is larger than the sum of its proper divisors (506551).

112910921 is an equidigital number, since it uses as much as digits as its factorization.

112910921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506550.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 112910921 is about 10625.9550629579. The cubic root of 112910921 is about 483.3317408852.

The spelling of 112910921 in words is "one hundred twelve million, nine hundred ten thousand, nine hundred twenty-one".