113288481 has 12 divisors (see below), whose sum is σ = 165881508. Its totient is φ = 74490624.

The previous prime is 113288447. The next prime is 113288519. The reversal of 113288481 is 184882311.

It can be written as a sum of positive squares in 2 ways, for example, as 66830625 + 46457856 = 8175^2 + 6816^2 .

It is not a de Polignac number, because 113288481 - 2¹⁰ = 113287457 is a prime.

It is a super-2 number, since 2×113288481² = 25668559854574722, which contains 22 as substring.

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 a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113288881) 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, 85560 + ... + 86873.

It is an arithmetic number, because the mean of its divisors is an integer number (13823459).

Almost surely, 2^113288481 is an apocalyptic number.

It is an amenable number.

113288481 is a deficient number, since it is larger than the sum of its proper divisors (52593027).

113288481 is a wasteful number, since it uses less digits than its factorization.

113288481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172512 (or 172509 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 113288481 is about 10643.7061684359. The cubic root of 113288481 is about 483.8698751455.

The spelling of 113288481 in words is "one hundred thirteen million, two hundred eighty-eight thousand, four hundred eighty-one".