79124131 has 4 divisors (see below), whose sum is σ = 79728264. Its totient is φ = 78520000.

The previous prime is 79124083. The next prime is 79124203. The reversal of 79124131 is 13142197.

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 79124131 - 2¹¹ = 79122083 is a prime.

It is a super-2 number, since 2×79124131² = 12521256213010322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79124131.

It is not an unprimeable number, because it can be changed into a prime (79124231) 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, 301870 + ... + 302131.

It is an arithmetic number, because the mean of its divisors is an integer number (19932066).

Almost surely, 2^79124131 is an apocalyptic number.

79124131 is a deficient number, since it is larger than the sum of its proper divisors (604133).

79124131 is a wasteful number, since it uses less digits than its factorization.

79124131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604132.

The product of its digits is 1512, while the sum is 28.

The square root of 79124131 is about 8895.1745907542. The cubic root of 79124131 is about 429.3086619382.

The spelling of 79124131 in words is "seventy-nine million, one hundred twenty-four thousand, one hundred thirty-one".