79151013 has 20 divisors (see below), whose sum is σ = 119911968. Its totient is φ = 52020360.

The previous prime is 79151011. The next prime is 79151021. The reversal of 79151013 is 31015197.

It is a happy number.

It is not a de Polignac number, because 79151013 - 2¹ = 79151011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79151011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1131 + ... + 12632.

Almost surely, 2^79151013 is an apocalyptic number.

It is an amenable number.

79151013 is a deficient number, since it is larger than the sum of its proper divisors (40760955).

79151013 is a wasteful number, since it uses less digits than its factorization.

79151013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13846 (or 13837 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 79151013 is about 8896.6855064119. The cubic root of 79151013 is about 429.3572748733.

The spelling of 79151013 in words is "seventy-nine million, one hundred fifty-one thousand, thirteen".