79149291 has 24 divisors (see below), whose sum is σ = 115421760. Its totient is φ = 48218976.

The previous prime is 79149289. The next prime is 79149337. The reversal of 79149291 is 19294197.

It is not a de Polignac number, because 79149291 - 2¹ = 79149289 is a prime.

It is a super-2 number, since 2×79149291² = 12529220531605362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79149211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53520 + ... + 54978.

It is an arithmetic number, because the mean of its divisors is an integer number (4809240).

Almost surely, 2^79149291 is an apocalyptic number.

79149291 is a deficient number, since it is larger than the sum of its proper divisors (36272469).

79149291 is a wasteful number, since it uses less digits than its factorization.

79149291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1582 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The square root of 79149291 is about 8896.5887282711. The cubic root of 79149291 is about 429.3541611688.

It can be divided in two parts, 7914 and 9291, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 79149291 in words is "seventy-nine million, one hundred forty-nine thousand, two hundred ninety-one".