80912513 has 8 divisors (see below), whose sum is σ = 88862400. Its totient is φ = 73061680.

The previous prime is 80912479. The next prime is 80912527. The reversal of 80912513 is 31521908.

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 80912513 - 2¹² = 80908417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80912593) 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, 23045 + ... + 26322.

It is an arithmetic number, because the mean of its divisors is an integer number (11107800).

Almost surely, 2^80912513 is an apocalyptic number.

It is an amenable number.

80912513 is a deficient number, since it is larger than the sum of its proper divisors (7949887).

80912513 is a wasteful number, since it uses less digits than its factorization.

80912513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49527.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 80912513 is about 8995.1382979919. The cubic root of 80912513 is about 432.5190395574.

The spelling of 80912513 in words is "eighty million, nine hundred twelve thousand, five hundred thirteen".