116125591 has 4 divisors (see below), whose sum is σ = 116727472. Its totient is φ = 115523712.

The previous prime is 116125577. The next prime is 116125619. The reversal of 116125591 is 195521611.

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 116125591 - 2⁷ = 116125463 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 (116125561) 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, 300651 + ... + 301036.

It is an arithmetic number, because the mean of its divisors is an integer number (29181868).

Almost surely, 2^116125591 is an apocalyptic number.

116125591 is a deficient number, since it is larger than the sum of its proper divisors (601881).

116125591 is an equidigital number, since it uses as much as digits as its factorization.

116125591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601880.

The product of its digits is 2700, while the sum is 31.

The square root of 116125591 is about 10776.1584528068. The cubic root of 116125591 is about 487.8758404347.

The spelling of 116125591 in words is "one hundred sixteen million, one hundred twenty-five thousand, five hundred ninety-one".