180949339 has 2 divisors, whose sum is σ = 180949340. Its totient is φ = 180949338.

The previous prime is 180949337. The next prime is 180949399. The reversal of 180949339 is 933949081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 180949339 - 2¹ = 180949337 is a prime.

Together with 180949337, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (180949333) 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 as a sum of consecutive naturals, namely, 90474669 + 90474670.

It is an arithmetic number, because the mean of its divisors is an integer number (90474670).

Almost surely, 2^180949339 is an apocalyptic number.

180949339 is a deficient number, since it is larger than the sum of its proper divisors (1).

180949339 is an equidigital number, since it uses as much as digits as its factorization.

180949339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 180949339 is about 13451.7411140714. The cubic root of 180949339 is about 565.6125020243.

The spelling of 180949339 in words is "one hundred eighty million, nine hundred forty-nine thousand, three hundred thirty-nine".