80459145 has 24 divisors (see below), whose sum is σ = 150191496. Its totient is φ = 39610368.

The previous prime is 80459101. The next prime is 80459189. The reversal of 80459145 is 54195408.

It is an interprime number because it is at equal distance from previous prime (80459101) and next prime (80459189).

It can be written as a sum of positive squares in 4 ways, for example, as 8277129 + 72182016 = 2877^2 + 8496^2 .

It is not a de Polignac number, because 80459145 - 2⁷ = 80459017 is a prime.

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, 68184 + ... + 69353.

It is an arithmetic number, because the mean of its divisors is an integer number (6257979).

Almost surely, 2^80459145 is an apocalyptic number.

It is an amenable number.

80459145 is a deficient number, since it is larger than the sum of its proper divisors (69732351).

80459145 is a wasteful number, since it uses less digits than its factorization.

80459145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137561 (or 137558 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 80459145 is about 8969.9021733796. The cubic root of 80459145 is about 431.7096975798.

The spelling of 80459145 in words is "eighty million, four hundred fifty-nine thousand, one hundred forty-five".