113773509 has 12 divisors (see below), whose sum is σ = 166420800. Its totient is φ = 74888424.

The previous prime is 113773489. The next prime is 113773529. The reversal of 113773509 is 905377311.

It is an interprime number because it is at equal distance from previous prime (113773489) and next prime (113773529).

It is not a de Polignac number, because 113773509 - 2⁵ = 113773477 is a prime.

It is a super-2 number, since 2×113773509² = 25888822700346162, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113773529) 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, 79299 + ... + 80720.

It is an arithmetic number, because the mean of its divisors is an integer number (13868400).

Almost surely, 2^113773509 is an apocalyptic number.

It is an amenable number.

113773509 is a deficient number, since it is larger than the sum of its proper divisors (52647291).

113773509 is a wasteful number, since it uses less digits than its factorization.

113773509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160104 (or 160101 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 113773509 is about 10666.4665658314. The cubic root of 113773509 is about 484.5594312805.

The spelling of 113773509 in words is "one hundred thirteen million, seven hundred seventy-three thousand, five hundred nine".