79142165 has 8 divisors (see below), whose sum is σ = 95502240. Its totient is φ = 62959312.

The previous prime is 79142113. The next prime is 79142179. The reversal of 79142165 is 56124197.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-79142165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43319 + ... + 45108.

It is an arithmetic number, because the mean of its divisors is an integer number (11937780).

Almost surely, 2^79142165 is an apocalyptic number.

It is an amenable number.

79142165 is a deficient number, since it is larger than the sum of its proper divisors (16360075).

79142165 is a wasteful number, since it uses less digits than its factorization.

79142165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88611.

The product of its digits is 15120, while the sum is 35.

The square root of 79142165 is about 8896.1882286741. The cubic root of 79142165 is about 429.3412755213.

The spelling of 79142165 in words is "seventy-nine million, one hundred forty-two thousand, one hundred sixty-five".