80145459 has 24 divisors (see below), whose sum is σ = 118133600. Its totient is φ = 52348032.

The previous prime is 80145427. The next prime is 80145469. The reversal of 80145459 is 95454108.

It is not a de Polignac number, because 80145459 - 2⁵ = 80145427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80145469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130437 + ... + 131049.

Almost surely, 2^80145459 is an apocalyptic number.

80145459 is a deficient number, since it is larger than the sum of its proper divisors (37988141).

80145459 is a wasteful number, since it uses less digits than its factorization.

80145459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 888 counting only the distinct ones).

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

The square root of 80145459 is about 8952.3996224476. The cubic root of 80145459 is about 431.1479314838.

The spelling of 80145459 in words is "eighty million, one hundred forty-five thousand, four hundred fifty-nine".