113831577 has 12 divisors (see below), whose sum is σ = 171572544. Its totient is φ = 72588120.

The previous prime is 113831563. The next prime is 113831587. The reversal of 113831577 is 775138311.

It is a happy number.

113831577 is a `hidden beast` number, since 1 + 1 + 3 + 83 + 1 + 577 = 666.

It is not a de Polignac number, because 113831577 - 2⁴ = 113831561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113831587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274749 + ... + 275162.

It is an arithmetic number, because the mean of its divisors is an integer number (14297712).

Almost surely, 2^113831577 is an apocalyptic number.

It is an amenable number.

113831577 is a deficient number, since it is larger than the sum of its proper divisors (57740967).

113831577 is a wasteful number, since it uses less digits than its factorization.

113831577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549940 (or 549937 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 113831577 is about 10669.1882071693. The cubic root of 113831577 is about 484.6418541330.

Adding to 113831577 its reverse (775138311), we get a palindrome (888969888).

The spelling of 113831577 in words is "one hundred thirteen million, eight hundred thirty-one thousand, five hundred seventy-seven".