180748013 has 2 divisors, whose sum is σ = 180748014. Its totient is φ = 180748012.

The previous prime is 180748003. The next prime is 180748019. The reversal of 180748013 is 310847081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129095044 + 51652969 = 11362^2 + 7187^2 .

It is an emirp because it is prime and its reverse (310847081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180748013 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 (180748019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90374006 + 90374007.

It is an arithmetic number, because the mean of its divisors is an integer number (90374007).

Almost surely, 2^180748013 is an apocalyptic number.

It is an amenable number.

180748013 is a deficient number, since it is larger than the sum of its proper divisors (1).

180748013 is an equidigital number, since it uses as much as digits as its factorization.

180748013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 180748013 is about 13444.2557622205. The cubic root of 180748013 is about 565.4026555166.

The spelling of 180748013 in words is "one hundred eighty million, seven hundred forty-eight thousand, thirteen".