136585457 has 2 divisors, whose sum is σ = 136585458. Its totient is φ = 136585456.

The previous prime is 136585453. The next prime is 136585483. The reversal of 136585457 is 754585631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92083216 + 44502241 = 9596^2 + 6671^2 .

It is a cyclic number.

It is not a de Polignac number, because 136585457 - 2² = 136585453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136585453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68292728 + 68292729.

It is an arithmetic number, because the mean of its divisors is an integer number (68292729).

Almost surely, 2^136585457 is an apocalyptic number.

It is an amenable number.

136585457 is a deficient number, since it is larger than the sum of its proper divisors (1).

136585457 is an equidigital number, since it uses as much as digits as its factorization.

136585457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The square root of 136585457 is about 11686.9780952991. The cubic root of 136585457 is about 514.9931905971.

The spelling of 136585457 in words is "one hundred thirty-six million, five hundred eighty-five thousand, four hundred fifty-seven".