79142115 has 16 divisors (see below), whose sum is σ = 136368288. Its totient is φ = 38962176.

The previous prime is 79142113. The next prime is 79142179. The reversal of 79142115 is 51124197.

It is not a de Polignac number, because 79142115 - 2¹ = 79142113 is a prime.

It is a super-4 number, since 4×79142115⁴ (a number of 33 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (79142111) 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, 202734 + ... + 203123.

It is an arithmetic number, because the mean of its divisors is an integer number (8523018).

Almost surely, 2^79142115 is an apocalyptic number.

79142115 is a deficient number, since it is larger than the sum of its proper divisors (57226173).

79142115 is a wasteful number, since it uses less digits than its factorization.

79142115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405878.

The product of its digits is 2520, while the sum is 30.

The square root of 79142115 is about 8896.1854184813. The cubic root of 79142115 is about 429.3411851057.

The spelling of 79142115 in words is "seventy-nine million, one hundred forty-two thousand, one hundred fifteen".