180394013 has 2 divisors, whose sum is σ = 180394014. Its totient is φ = 180394012.

The previous prime is 180394009. The next prime is 180394057. The reversal of 180394013 is 310493081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165199609 + 15194404 = 12853^2 + 3898^2 .

It is a cyclic number.

It is not a de Polignac number, because 180394013 - 2² = 180394009 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180394003) 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, 90197006 + 90197007.

It is an arithmetic number, because the mean of its divisors is an integer number (90197007).

Almost surely, 2^180394013 is an apocalyptic number.

It is an amenable number.

180394013 is a deficient number, since it is larger than the sum of its proper divisors (1).

180394013 is an equidigital number, since it uses as much as digits as its factorization.

180394013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 180394013 is about 13431.0838356404. The cubic root of 180394013 is about 565.0332953465.

The spelling of 180394013 in words is "one hundred eighty million, three hundred ninety-four thousand, thirteen".