180077813 has 2 divisors, whose sum is σ = 180077814. Its totient is φ = 180077812.

The previous prime is 180077809. The next prime is 180077819. The reversal of 180077813 is 318770081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117462244 + 62615569 = 10838^2 + 7913^2 .

It is a cyclic number.

It is not a de Polignac number, because 180077813 - 2² = 180077809 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 (180077819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90038906 + 90038907.

It is an arithmetic number, because the mean of its divisors is an integer number (90038907).

Almost surely, 2^180077813 is an apocalyptic number.

It is an amenable number.

180077813 is a deficient number, since it is larger than the sum of its proper divisors (1).

180077813 is an equidigital number, since it uses as much as digits as its factorization.

180077813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 180077813 is about 13419.3074709539. The cubic root of 180077813 is about 564.7029665369.

The spelling of 180077813 in words is "one hundred eighty million, seventy-seven thousand, eight hundred thirteen".