113728251 has 32 divisors (see below), whose sum is σ = 187210240. Its totient is φ = 59802624.

The previous prime is 113728247. The next prime is 113728253. The reversal of 113728251 is 152827311.

It is not a de Polignac number, because 113728251 - 2² = 113728247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113728253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168651 + ... + 169323.

It is an arithmetic number, because the mean of its divisors is an integer number (5850320).

Almost surely, 2^113728251 is an apocalyptic number.

113728251 is a deficient number, since it is larger than the sum of its proper divisors (73481989).

113728251 is a wasteful number, since it uses less digits than its factorization.

113728251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its digits is 3360, while the sum is 30.

The square root of 113728251 is about 10664.3448462622. The cubic root of 113728251 is about 484.4951717428.

The spelling of 113728251 in words is "one hundred thirteen million, seven hundred twenty-eight thousand, two hundred fifty-one".