979215151 has 4 divisors (see below), whose sum is σ = 981552600. Its totient is φ = 976877704.

The previous prime is 979215143. The next prime is 979215157. The reversal of 979215151 is 151512979.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 979215151 - 2³ = 979215143 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979215157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168096 + ... + 1168933.

It is an arithmetic number, because the mean of its divisors is an integer number (245388150).

Almost surely, 2^979215151 is an apocalyptic number.

979215151 is a deficient number, since it is larger than the sum of its proper divisors (2337449).

979215151 is a wasteful number, since it uses less digits than its factorization.

979215151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337448.

The product of its digits is 28350, while the sum is 40.

The square root of 979215151 is about 31292.4136333393. The cubic root of 979215151 is about 993.0231538199.

The spelling of 979215151 in words is "nine hundred seventy-nine million, two hundred fifteen thousand, one hundred fifty-one".