113129365 has 4 divisors (see below), whose sum is σ = 135755244. Its totient is φ = 90503488.

The previous prime is 113129347. The next prime is 113129381. The reversal of 113129365 is 563921311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563921311 = 19 ⋅29680069.

It can be written as a sum of positive squares in 2 ways, for example, as 84805681 + 28323684 = 9209^2 + 5322^2 .

It is a cyclic number.

It is not a de Polignac number, because 113129365 - 2²⁵ = 79574933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11312932 + ... + 11312941.

It is an arithmetic number, because the mean of its divisors is an integer number (33938811).

Almost surely, 2^113129365 is an apocalyptic number.

It is an amenable number.

113129365 is a deficient number, since it is larger than the sum of its proper divisors (22625879).

113129365 is an equidigital number, since it uses as much as digits as its factorization.

113129365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22625878.

The product of its digits is 4860, while the sum is 31.

The square root of 113129365 is about 10636.2288899779. The cubic root of 113129365 is about 483.6432339434.

The spelling of 113129365 in words is "one hundred thirteen million, one hundred twenty-nine thousand, three hundred sixty-five".