79133281 has 8 divisors (see below), whose sum is σ = 79896960. Its totient is φ = 78373632.

The previous prime is 79133267. The next prime is 79133303. The reversal of 79133281 is 18233197.

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 79133281 - 2¹¹ = 79131233 is a prime.

It is a super-2 number, since 2×79133281² = 12524152323649922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79133221) 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, 49980 + ... + 51538.

It is an arithmetic number, because the mean of its divisors is an integer number (9987120).

Almost surely, 2^79133281 is an apocalyptic number.

It is an amenable number.

79133281 is a deficient number, since it is larger than the sum of its proper divisors (763679).

79133281 is a wasteful number, since it uses less digits than its factorization.

79133281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its digits is 9072, while the sum is 34.

The square root of 79133281 is about 8895.6888996862. The cubic root of 79133281 is about 429.3252098728.

The spelling of 79133281 in words is "seventy-nine million, one hundred thirty-three thousand, two hundred eighty-one".