79521151 has 8 divisors (see below), whose sum is σ = 80780400. Its totient is φ = 78271872.

The previous prime is 79521119. The next prime is 79521157. The reversal of 79521151 is 15112597.

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

It is a cyclic number.

It is not a de Polignac number, because 79521151 - 2⁵ = 79521119 is a prime.

It is a super-2 number, since 2×79521151² = 12647226912729602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79521157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14476 + ... + 19198.

It is an arithmetic number, because the mean of its divisors is an integer number (10097550).

Almost surely, 2^79521151 is an apocalyptic number.

79521151 is a deficient number, since it is larger than the sum of its proper divisors (1259249).

79521151 is a wasteful number, since it uses less digits than its factorization.

79521151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985.

The product of its digits is 3150, while the sum is 31.

The square root of 79521151 is about 8917.4632603673. The cubic root of 79521151 is about 430.0255095737.

The spelling of 79521151 in words is "seventy-nine million, five hundred twenty-one thousand, one hundred fifty-one".