80513091 has 6 divisors (see below), whose sum is σ = 116296700. Its totient is φ = 53675388.

The previous prime is 80513057. The next prime is 80513093. The reversal of 80513091 is 19031508.

It is not a de Polignac number, because 80513091 - 2¹⁰ = 80512067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80513093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4472941 + ... + 4472958.

Almost surely, 2^80513091 is an apocalyptic number.

80513091 is a deficient number, since it is larger than the sum of its proper divisors (35783609).

80513091 is a wasteful number, since it uses less digits than its factorization.

80513091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8945905 (or 8945902 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 80513091 is about 8972.9087257143. The cubic root of 80513091 is about 431.8061598211.

Adding to 80513091 its reverse (19031508), we get a palindrome (99544599).

The spelling of 80513091 in words is "eighty million, five hundred thirteen thousand, ninety-one".