136331297 has 2 divisors, whose sum is σ = 136331298. Its totient is φ = 136331296.

The previous prime is 136331263. The next prime is 136331309. The reversal of 136331297 is 792133631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122855056 + 13476241 = 11084^2 + 3671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136331297 is a prime.

It is not a weakly prime, because it can be changed into another prime (136331207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68165648 + 68165649.

It is an arithmetic number, because the mean of its divisors is an integer number (68165649).

Almost surely, 2^136331297 is an apocalyptic number.

It is an amenable number.

136331297 is a deficient number, since it is larger than the sum of its proper divisors (1).

136331297 is an equidigital number, since it uses as much as digits as its factorization.

136331297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 35.

The square root of 136331297 is about 11676.0993914920. The cubic root of 136331297 is about 514.6735569067.

The spelling of 136331297 in words is "one hundred thirty-six million, three hundred thirty-one thousand, two hundred ninety-seven".