655346137 has 2 divisors, whose sum is σ = 655346138. Its totient is φ = 655346136.

The previous prime is 655346129. The next prime is 655346149. The reversal of 655346137 is 731643556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364848201 + 290497936 = 19101^2 + 17044^2 .

It is a cyclic number.

It is not a de Polignac number, because 655346137 - 2³ = 655346129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655346137.

It is not a weakly prime, because it can be changed into another prime (655346177) 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, 327673068 + 327673069.

It is an arithmetic number, because the mean of its divisors is an integer number (327673069).

Almost surely, 2^655346137 is an apocalyptic number.

It is an amenable number.

655346137 is a deficient number, since it is larger than the sum of its proper divisors (1).

655346137 is an equidigital number, since it uses as much as digits as its factorization.

655346137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 40.

The square root of 655346137 is about 25599.7292368494. The cubic root of 655346137 is about 868.6075125974.

The spelling of 655346137 in words is "six hundred fifty-five million, three hundred forty-six thousand, one hundred thirty-seven".