116131589 has 4 divisors (see below), whose sum is σ = 132721824. Its totient is φ = 99541356.

The previous prime is 116131579. The next prime is 116131621. The reversal of 116131589 is 985131611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 116131589 - 2²⁴ = 99354373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116131559) 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, 8295107 + ... + 8295120.

It is an arithmetic number, because the mean of its divisors is an integer number (33180456).

Almost surely, 2^116131589 is an apocalyptic number.

It is an amenable number.

116131589 is a deficient number, since it is larger than the sum of its proper divisors (16590235).

116131589 is an equidigital number, since it uses as much as digits as its factorization.

116131589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590234.

The product of its digits is 6480, while the sum is 35.

The square root of 116131589 is about 10776.4367487588. The cubic root of 116131589 is about 487.8842400444.

The spelling of 116131589 in words is "one hundred sixteen million, one hundred thirty-one thousand, five hundred eighty-nine".