80140845 has 16 divisors (see below), whose sum is σ = 128419200. Its totient is φ = 42677184.

The previous prime is 80140831. The next prime is 80140847. The reversal of 80140845 is 54804108.

It is not a de Polignac number, because 80140845 - 2⁴ = 80140829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80140847) 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, 7231 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (8026200).

Almost surely, 2^80140845 is an apocalyptic number.

It is an amenable number.

80140845 is a deficient number, since it is larger than the sum of its proper divisors (48278355).

80140845 is a wasteful number, since it uses less digits than its factorization.

80140845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8084.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 80140845 is about 8952.1419224675. The cubic root of 80140845 is about 431.1396575498.

The spelling of 80140845 in words is "eighty million, one hundred forty thousand, eight hundred forty-five".