79145231 has 16 divisors (see below), whose sum is σ = 91203840. Its totient is φ = 67974720.

The previous prime is 79145219. The next prime is 79145237. The reversal of 79145231 is 13254197.

It is not a de Polignac number, because 79145231 - 2⁶ = 79145167 is a prime.

It is a super-2 number, since 2×79145231² = 12527935180086722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79145237) 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, 19115 + ... + 22883.

It is an arithmetic number, because the mean of its divisors is an integer number (5700240).

Almost surely, 2^79145231 is an apocalyptic number.

79145231 is a deficient number, since it is larger than the sum of its proper divisors (12058609).

79145231 is a wasteful number, since it uses less digits than its factorization.

79145231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886.

The product of its digits is 7560, while the sum is 32.

The square root of 79145231 is about 8896.3605479994. The cubic root of 79145231 is about 429.3468197356.

The spelling of 79145231 in words is "seventy-nine million, one hundred forty-five thousand, two hundred thirty-one".