113562399 has 4 divisors (see below), whose sum is σ = 151416536. Its totient is φ = 75708264.

The previous prime is 113562391. The next prime is 113562439. The reversal of 113562399 is 993265311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993265311 = 3 ⋅331088437.

It is not a de Polignac number, because 113562399 - 2³ = 113562391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113562391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18927064 + ... + 18927069.

It is an arithmetic number, because the mean of its divisors is an integer number (37854134).

Almost surely, 2^113562399 is an apocalyptic number.

113562399 is a deficient number, since it is larger than the sum of its proper divisors (37854137).

113562399 is an equidigital number, since it uses as much as digits as its factorization.

113562399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37854136.

The product of its digits is 43740, while the sum is 39.

The square root of 113562399 is about 10656.5660041122. The cubic root of 113562399 is about 484.2595410911.

The spelling of 113562399 in words is "one hundred thirteen million, five hundred sixty-two thousand, three hundred ninety-nine".