136332689 has 2 divisors, whose sum is σ = 136332690. Its totient is φ = 136332688.

The previous prime is 136332671. The next prime is 136332719. The reversal of 136332689 is 986233631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129572689 + 6760000 = 11383^2 + 2600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136332689 is a prime.

It is not a weakly prime, because it can be changed into another prime (136332629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68166344 + 68166345.

It is an arithmetic number, because the mean of its divisors is an integer number (68166345).

Almost surely, 2^136332689 is an apocalyptic number.

It is an amenable number.

136332689 is a deficient number, since it is larger than the sum of its proper divisors (1).

136332689 is an equidigital number, since it uses as much as digits as its factorization.

136332689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 41.

The square root of 136332689 is about 11676.1590002877. The cubic root of 136332689 is about 514.6753085787.

The spelling of 136332689 in words is "one hundred thirty-six million, three hundred thirty-two thousand, six hundred eighty-nine".