79118161 has 4 divisors (see below), whose sum is σ = 79139824. Its totient is φ = 79096500.

The previous prime is 79118141. The next prime is 79118167. The reversal of 79118161 is 16181197.

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 79118161 - 2⁵ = 79118129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79118167) 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, 3855 + ... + 13156.

It is an arithmetic number, because the mean of its divisors is an integer number (19784956).

Almost surely, 2^79118161 is an apocalyptic number.

It is an amenable number.

79118161 is a deficient number, since it is larger than the sum of its proper divisors (21663).

79118161 is a wasteful number, since it uses less digits than its factorization.

79118161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21662.

The product of its digits is 3024, while the sum is 34.

The square root of 79118161 is about 8894.8390092233. The cubic root of 79118161 is about 429.2978644013.

The spelling of 79118161 in words is "seventy-nine million, one hundred eighteen thousand, one hundred sixty-one".