80965045 has 16 divisors (see below), whose sum is σ = 111208320. Its totient is φ = 55433664.

The previous prime is 80965043. The next prime is 80965069. The reversal of 80965045 is 54056908.

It is a cyclic number.

It is not a de Polignac number, because 80965045 - 2¹ = 80965043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80964995 and 80965013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80965043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28719 + ... + 31411.

It is an arithmetic number, because the mean of its divisors is an integer number (6950520).

Almost surely, 2^80965045 is an apocalyptic number.

It is an amenable number.

80965045 is a deficient number, since it is larger than the sum of its proper divisors (30243275).

80965045 is a wasteful number, since it uses less digits than its factorization.

80965045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 80965045 is about 8998.0578460021. The cubic root of 80965045 is about 432.6126228362.

The spelling of 80965045 in words is "eighty million, nine hundred sixty-five thousand, forty-five".