113890915 has 8 divisors (see below), whose sum is σ = 137062800. Its totient is φ = 90850272.

The previous prime is 113890913. The next prime is 113890919. The reversal of 113890915 is 519098311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113890915 - 2¹ = 113890913 is a prime.

It is a super-2 number, since 2×113890915² = 25942281039074450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113890913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30889 + ... + 34378.

It is an arithmetic number, because the mean of its divisors is an integer number (17132850).

Almost surely, 2^113890915 is an apocalyptic number.

113890915 is a deficient number, since it is larger than the sum of its proper divisors (23171885).

113890915 is an equidigital number, since it uses as much as digits as its factorization.

113890915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65621.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 113890915 is about 10671.9686562508. The cubic root of 113890915 is about 484.7260506967.

The spelling of 113890915 in words is "one hundred thirteen million, eight hundred ninety thousand, nine hundred fifteen".