79022131 has 4 divisors (see below), whose sum is σ = 81571264. Its totient is φ = 76473000.

The previous prime is 79022123. The next prime is 79022161. The reversal of 79022131 is 13122097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13122097 = 103 ⋅127399.

It is a cyclic number.

It is not a de Polignac number, because 79022131 - 2³ = 79022123 is a prime.

It is a super-2 number, since 2×79022131² = 12488994375562322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79022096 and 79022105.

It is not an unprimeable number, because it can be changed into a prime (79022161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274520 + ... + 1274581.

It is an arithmetic number, because the mean of its divisors is an integer number (20392816).

Almost surely, 2^79022131 is an apocalyptic number.

79022131 is a deficient number, since it is larger than the sum of its proper divisors (2549133).

79022131 is a wasteful number, since it uses less digits than its factorization.

79022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549132.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 79022131 is about 8889.4392961536. The cubic root of 79022131 is about 429.1241067210.

The spelling of 79022131 in words is "seventy-nine million, twenty-two thousand, one hundred thirty-one".