18080179 has 4 divisors (see below), whose sum is σ = 19470976. Its totient is φ = 16689384.

The previous prime is 18080149. The next prime is 18080203. The reversal of 18080179 is 97108081.

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

It is a cyclic number.

It is not a de Polignac number, because 18080179 - 2⁹ = 18079667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18080119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695379 + ... + 695404.

It is an arithmetic number, because the mean of its divisors is an integer number (4867744).

Almost surely, 2^18080179 is an apocalyptic number.

18080179 is a deficient number, since it is larger than the sum of its proper divisors (1390797).

18080179 is a wasteful number, since it uses less digits than its factorization.

18080179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390796.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 18080179 is about 4252.0793736712. The cubic root of 18080179 is about 262.4626897841.

The spelling of 18080179 in words is "eighteen million, eighty thousand, one hundred seventy-nine".