180500137 has 2 divisors, whose sum is σ = 180500138. Its totient is φ = 180500136.

The previous prime is 180500129. The next prime is 180500141. The reversal of 180500137 is 731005081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102637161 + 77862976 = 10131^2 + 8824^2 .

It is a cyclic number.

It is not a de Polignac number, because 180500137 - 2³ = 180500129 is a prime.

It is not a weakly prime, because it can be changed into another prime (180500107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90250068 + 90250069.

It is an arithmetic number, because the mean of its divisors is an integer number (90250069).

Almost surely, 2^180500137 is an apocalyptic number.

It is an amenable number.

180500137 is a deficient number, since it is larger than the sum of its proper divisors (1).

180500137 is an equidigital number, since it uses as much as digits as its factorization.

180500137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 180500137 is about 13435.0339411555. The cubic root of 180500137 is about 565.1440747780.

The spelling of 180500137 in words is "one hundred eighty million, five hundred thousand, one hundred thirty-seven".