113688187 has 4 divisors (see below), whose sum is σ = 113865640. Its totient is φ = 113510736.

The previous prime is 113688167. The next prime is 113688193. The reversal of 113688187 is 781886311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113688187 - 2⁷ = 113688059 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (113688167) 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, 87762 + ... + 89047.

It is an arithmetic number, because the mean of its divisors is an integer number (28466410).

Almost surely, 2^113688187 is an apocalyptic number.

113688187 is a deficient number, since it is larger than the sum of its proper divisors (177453).

113688187 is an equidigital number, since it uses as much as digits as its factorization.

113688187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177452.

The product of its digits is 64512, while the sum is 43.

The square root of 113688187 is about 10662.4662719279. The cubic root of 113688187 is about 484.4382726752.

The spelling of 113688187 in words is "one hundred thirteen million, six hundred eighty-eight thousand, one hundred eighty-seven".