180363949 has 2 divisors, whose sum is σ = 180363950. Its totient is φ = 180363948.

The previous prime is 180363923. The next prime is 180363971. The reversal of 180363949 is 949363081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122877225 + 57486724 = 11085^2 + 7582^2 .

It is a cyclic number.

It is not a de Polignac number, because 180363949 - 2⁵ = 180363917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180361949) 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, 90181974 + 90181975.

It is an arithmetic number, because the mean of its divisors is an integer number (90181975).

Almost surely, 2^180363949 is an apocalyptic number.

It is an amenable number.

180363949 is a deficient number, since it is larger than the sum of its proper divisors (1).

180363949 is an equidigital number, since it uses as much as digits as its factorization.

180363949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 180363949 is about 13429.9645941454. The cubic root of 180363949 is about 565.0019046063.

The spelling of 180363949 in words is "one hundred eighty million, three hundred sixty-three thousand, nine hundred forty-nine".