79161 has 4 divisors (see below), whose sum is σ = 105552. Its totient is φ = 52772.

The previous prime is 79159. The next prime is 79181. The reversal of 79161 is 16197.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16197 = 3 ⋅5399.

It is a cyclic number.

It is not a de Polignac number, because 79161 - 2¹ = 79159 is a prime.

It is a D-number.

79161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (79111) 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, 13191 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (26388).

2⁷⁹¹⁶¹ is an apocalyptic number.

It is an amenable number.

79161 is a deficient number, since it is larger than the sum of its proper divisors (26391).

79161 is a wasteful number, since it uses less digits than its factorization.

79161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26390.

The product of its digits is 378, while the sum is 24.

The square root of 79161 is about 281.3556468244. The cubic root of 79161 is about 42.9375332384.

The spelling of 79161 in words is "seventy-nine thousand, one hundred sixty-one".