136568533 has 2 divisors, whose sum is σ = 136568534. Its totient is φ = 136568532.

The previous prime is 136568527. The next prime is 136568557. The reversal of 136568533 is 335865631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103367889 + 33200644 = 10167^2 + 5762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136568533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136568513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68284266 + 68284267.

It is an arithmetic number, because the mean of its divisors is an integer number (68284267).

Almost surely, 2^136568533 is an apocalyptic number.

It is an amenable number.

136568533 is a deficient number, since it is larger than the sum of its proper divisors (1).

136568533 is an equidigital number, since it uses as much as digits as its factorization.

136568533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 136568533 is about 11686.2540191457. The cubic root of 136568533 is about 514.9719191652.

The spelling of 136568533 in words is "one hundred thirty-six million, five hundred sixty-eight thousand, five hundred thirty-three".