80813115 has 12 divisors (see below), whose sum is σ = 140076144. Its totient is φ = 43100304.

The previous prime is 80813113. The next prime is 80813147. The reversal of 80813115 is 51131808.

It is not a de Polignac number, because 80813115 - 2¹ = 80813113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80813113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897879 + ... + 897968.

It is an arithmetic number, because the mean of its divisors is an integer number (11673012).

Almost surely, 2^80813115 is an apocalyptic number.

80813115 is a deficient number, since it is larger than the sum of its proper divisors (59263029).

80813115 is a wasteful number, since it uses less digits than its factorization.

80813115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795858 (or 1795855 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 80813115 is about 8989.6115043977. The cubic root of 80813115 is about 432.3418558215.

The spelling of 80813115 in words is "eighty million, eight hundred thirteen thousand, one hundred fifteen".