655469137 has 2 divisors, whose sum is σ = 655469138. Its totient is φ = 655469136.

The previous prime is 655469131. The next prime is 655469161. The reversal of 655469137 is 731964556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516016656 + 139452481 = 22716^2 + 11809^2 .

It is a cyclic number.

It is not a de Polignac number, because 655469137 - 2¹¹ = 655467089 is a prime.

It is not a weakly prime, because it can be changed into another prime (655469131) 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, 327734568 + 327734569.

It is an arithmetic number, because the mean of its divisors is an integer number (327734569).

Almost surely, 2^655469137 is an apocalyptic number.

It is an amenable number.

655469137 is a deficient number, since it is larger than the sum of its proper divisors (1).

655469137 is an equidigital number, since it uses as much as digits as its factorization.

655469137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 655469137 is about 25602.1314932956. The cubic root of 655469137 is about 868.6618513326.

The spelling of 655469137 in words is "six hundred fifty-five million, four hundred sixty-nine thousand, one hundred thirty-seven".