113888891 has 8 divisors (see below), whose sum is σ = 117943344. Its totient is φ = 109905120.

The previous prime is 113888843. The next prime is 113888903. The reversal of 113888891 is 198888311.

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 113888891 - 2²² = 109694587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113888791) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14381 + ... + 20846.

It is an arithmetic number, because the mean of its divisors is an integer number (14742918).

Almost surely, 2^113888891 is an apocalyptic number.

113888891 is a deficient number, since it is larger than the sum of its proper divisors (4054453).

113888891 is an equidigital number, since it uses as much as digits as its factorization.

113888891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35341.

The product of its digits is 110592, while the sum is 47.

The square root of 113888891 is about 10671.8738279648. The cubic root of 113888891 is about 484.7231792609.

The spelling of 113888891 in words is "one hundred thirteen million, eight hundred eighty-eight thousand, eight hundred ninety-one".