79022139 has 16 divisors (see below), whose sum is σ = 120672000. Its totient is φ = 45059040.

The previous prime is 79022123. The next prime is 79022161. The reversal of 79022139 is 93122097.

It is not a de Polignac number, because 79022139 - 2⁴ = 79022123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79022179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6709 + ... + 14249.

It is an arithmetic number, because the mean of its divisors is an integer number (7542000).

Almost surely, 2^79022139 is an apocalyptic number.

79022139 is a deficient number, since it is larger than the sum of its proper divisors (41649861).

79022139 is a wasteful number, since it uses less digits than its factorization.

79022139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 79022139 is about 8889.4397461257. The cubic root of 79022139 is about 429.1241212021.

The spelling of 79022139 in words is "seventy-nine million, twenty-two thousand, one hundred thirty-nine".