180379931 has 2 divisors, whose sum is σ = 180379932. Its totient is φ = 180379930.

The previous prime is 180379889. The next prime is 180379963. The reversal of 180379931 is 139973081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 180379931 - 2¹⁰ = 180378907 is a prime.

It is a super-2 number, since 2×180379931² = 65073839015129522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (180379981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90189965 + 90189966.

It is an arithmetic number, because the mean of its divisors is an integer number (90189966).

Almost surely, 2^180379931 is an apocalyptic number.

180379931 is a deficient number, since it is larger than the sum of its proper divisors (1).

180379931 is an equidigital number, since it uses as much as digits as its factorization.

180379931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 180379931 is about 13430.5595937027. The cubic root of 180379931 is about 565.0185923346.

The spelling of 180379931 in words is "one hundred eighty million, three hundred seventy-nine thousand, nine hundred thirty-one".