118108613 has 4 divisors (see below), whose sum is σ = 134981280. Its totient is φ = 101235948.

The previous prime is 118108609. The next prime is 118108621. The reversal of 118108613 is 316801811.

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 118108613 - 2² = 118108609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118108643) 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, 8436323 + ... + 8436336.

It is an arithmetic number, because the mean of its divisors is an integer number (33745320).

Almost surely, 2^118108613 is an apocalyptic number.

It is an amenable number.

118108613 is a deficient number, since it is larger than the sum of its proper divisors (16872667).

118108613 is an equidigital number, since it uses as much as digits as its factorization.

118108613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16872666.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 118108613 is about 10867.7786598734. The cubic root of 118108613 is about 490.6372563939.

The spelling of 118108613 in words is "one hundred eighteen million, one hundred eight thousand, six hundred thirteen".