113621375 has 16 divisors (see below), whose sum is σ = 162057792. Its totient is φ = 77911200.

The previous prime is 113621363. The next prime is 113621381. The reversal of 113621375 is 573126311.

It is not a de Polignac number, because 113621375 - 2²⁰ = 112572799 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, 64052 + ... + 65801.

It is an arithmetic number, because the mean of its divisors is an integer number (10128612).

Almost surely, 2^113621375 is an apocalyptic number.

113621375 is a deficient number, since it is larger than the sum of its proper divisors (48436417).

113621375 is an equidigital number, since it uses as much as digits as its factorization.

113621375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129875 (or 129865 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 113621375 is about 10659.3327652344. The cubic root of 113621375 is about 484.3433562401.

Adding to 113621375 its reverse (573126311), we get a palindrome (686747686).

The spelling of 113621375 in words is "one hundred thirteen million, six hundred twenty-one thousand, three hundred seventy-five".