80133865 has 24 divisors (see below), whose sum is σ = 112285440. Its totient is φ = 54740448.

The previous prime is 80133847. The next prime is 80133871. The reversal of 80133865 is 56833108.

It is a happy number.

It is not a de Polignac number, because 80133865 - 2⁹ = 80133353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80133865.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92424 + ... + 93286.

It is an arithmetic number, because the mean of its divisors is an integer number (4678560).

Almost surely, 2^80133865 is an apocalyptic number.

It is an amenable number.

80133865 is a deficient number, since it is larger than the sum of its proper divisors (32151575).

80133865 is a wasteful number, since it uses less digits than its factorization.

80133865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 80133865 is about 8951.7520631438. The cubic root of 80133865 is about 431.1271402448.

The spelling of 80133865 in words is "eighty million, one hundred thirty-three thousand, eight hundred sixty-five".