180900413 has 2 divisors, whose sum is σ = 180900414. Its totient is φ = 180900412.

The previous prime is 180900397. The next prime is 180900449. The reversal of 180900413 is 314009081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 63329764 = 10843^2 + 7958^2 .

It is a cyclic number.

It is not a de Polignac number, because 180900413 - 2⁴ = 180900397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180980413) 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, 90450206 + 90450207.

It is an arithmetic number, because the mean of its divisors is an integer number (90450207).

Almost surely, 2^180900413 is an apocalyptic number.

It is an amenable number.

180900413 is a deficient number, since it is larger than the sum of its proper divisors (1).

180900413 is an equidigital number, since it uses as much as digits as its factorization.

180900413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 180900413 is about 13449.9224161331. The cubic root of 180900413 is about 565.5615197035.

Adding to 180900413 its reverse (314009081), we get a palindrome (494909494).

The spelling of 180900413 in words is "one hundred eighty million, nine hundred thousand, four hundred thirteen".