180315197 has 2 divisors, whose sum is σ = 180315198. Its totient is φ = 180315196.

The previous prime is 180315139. The next prime is 180315217. The reversal of 180315197 is 791513081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158281561 + 22033636 = 12581^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 180315197 - 2⁶ = 180315133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180315397) 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, 90157598 + 90157599.

It is an arithmetic number, because the mean of its divisors is an integer number (90157599).

Almost surely, 2^180315197 is an apocalyptic number.

It is an amenable number.

180315197 is a deficient number, since it is larger than the sum of its proper divisors (1).

180315197 is an equidigital number, since it uses as much as digits as its factorization.

180315197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 180315197 is about 13428.1494257399. The cubic root of 180315197 is about 564.9509937394.

The spelling of 180315197 in words is "one hundred eighty million, three hundred fifteen thousand, one hundred ninety-seven".