80920131 has 4 divisors (see below), whose sum is σ = 107893512. Its totient is φ = 53946752.

The previous prime is 80920117. The next prime is 80920139. The reversal of 80920131 is 13102908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80920131 - 2¹¹ = 80918083 is a prime.

It is a super-2 number, since 2×80920131² = 13096135202114322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80920139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13486686 + ... + 13486691.

It is an arithmetic number, because the mean of its divisors is an integer number (26973378).

Almost surely, 2^80920131 is an apocalyptic number.

80920131 is a deficient number, since it is larger than the sum of its proper divisors (26973381).

80920131 is a wasteful number, since it uses less digits than its factorization.

80920131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26973380.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 80920131 is about 8995.5617389911. The cubic root of 80920131 is about 432.5326131755.

The spelling of 80920131 in words is "eighty million, nine hundred twenty thousand, one hundred thirty-one".