79956142 has 48 divisors (see below), whose sum is σ = 153325440. Its totient is φ = 31035312.

The previous prime is 79956131. The next prime is 79956143. The reversal of 79956142 is 24165997.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79956143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41893 + ... + 43759.

It is an arithmetic number, because the mean of its divisors is an integer number (3194280).

Almost surely, 2^79956142 is an apocalyptic number.

79956142 is a deficient number, since it is larger than the sum of its proper divisors (73369298).

79956142 is a wasteful number, since it uses less digits than its factorization.

79956142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1918 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 79956142 is about 8941.8198371472. The cubic root of 79956142 is about 430.8081826155.

The spelling of 79956142 in words is "seventy-nine million, nine hundred fifty-six thousand, one hundred forty-two".