79905151 has 8 divisors (see below), whose sum is σ = 88284384. Its totient is φ = 71934720.

The previous prime is 79905131. The next prime is 79905173. The reversal of 79905151 is 15150997.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79905151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79905151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79905131) 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, 101790 + ... + 102571.

It is an arithmetic number, because the mean of its divisors is an integer number (11035548).

Almost surely, 2^79905151 is an apocalyptic number.

79905151 is a deficient number, since it is larger than the sum of its proper divisors (8379233).

79905151 is a wasteful number, since it uses less digits than its factorization.

79905151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204401.

The product of its (nonzero) digits is 14175, while the sum is 37.

The square root of 79905151 is about 8938.9681171822. The cubic root of 79905151 is about 430.7165823501.

The spelling of 79905151 in words is "seventy-nine million, nine hundred five thousand, one hundred fifty-one".