113573765 has 16 divisors (see below), whose sum is σ = 140447856. Its totient is φ = 88128000.

The previous prime is 113573743. The next prime is 113573771. The reversal of 113573765 is 567375311.

It can be written as a sum of positive squares in 8 ways, for example, as 49589764 + 63984001 = 7042^2 + 7999^2 .

It is not a de Polignac number, because 113573765 - 2¹⁸ = 113311621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19715 + ... + 24815.

It is an arithmetic number, because the mean of its divisors is an integer number (8777991).

Almost surely, 2^113573765 is an apocalyptic number.

It is an amenable number.

113573765 is a deficient number, since it is larger than the sum of its proper divisors (26874091).

113573765 is an equidigital number, since it uses as much as digits as its factorization.

113573765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240.

The product of its digits is 66150, while the sum is 38.

The square root of 113573765 is about 10657.0992770078. The cubic root of 113573765 is about 484.2756964100.

The spelling of 113573765 in words is "one hundred thirteen million, five hundred seventy-three thousand, seven hundred sixty-five".