180638713 has 2 divisors, whose sum is σ = 180638714. Its totient is φ = 180638712.

The previous prime is 180638687. The next prime is 180638729. The reversal of 180638713 is 317836081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149132944 + 31505769 = 12212^2 + 5613^2 .

It is a cyclic number.

It is not a de Polignac number, because 180638713 - 2²⁵ = 147084281 is a prime.

It is not a weakly prime, because it can be changed into another prime (180639713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90319356 + 90319357.

It is an arithmetic number, because the mean of its divisors is an integer number (90319357).

Almost surely, 2^180638713 is an apocalyptic number.

It is an amenable number.

180638713 is a deficient number, since it is larger than the sum of its proper divisors (1).

180638713 is an equidigital number, since it uses as much as digits as its factorization.

180638713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 180638713 is about 13440.1902144278. The cubic root of 180638713 is about 565.2886644596.

The spelling of 180638713 in words is "one hundred eighty million, six hundred thirty-eight thousand, seven hundred thirteen".