80145497 has 4 divisors (see below), whose sum is σ = 84859956. Its totient is φ = 75431040.

The previous prime is 80145493. The next prime is 80145511. The reversal of 80145497 is 79454108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70879561 + 9265936 = 8419^2 + 3044^2 .

It is not a de Polignac number, because 80145497 - 2² = 80145493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80145497.

It is not an unprimeable number, because it can be changed into a prime (80145491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357204 + ... + 2357237.

It is an arithmetic number, because the mean of its divisors is an integer number (21214989).

Almost surely, 2^80145497 is an apocalyptic number.

It is an amenable number.

80145497 is a deficient number, since it is larger than the sum of its proper divisors (4714459).

80145497 is a wasteful number, since it uses less digits than its factorization.

80145497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714458.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80145497 is about 8952.4017447834. The cubic root of 80145497 is about 431.1479996250.

The spelling of 80145497 in words is "eighty million, one hundred forty-five thousand, four hundred ninety-seven".