136081697 has 2 divisors, whose sum is σ = 136081698. Its totient is φ = 136081696.

The previous prime is 136081681. The next prime is 136081711. The reversal of 136081697 is 796180631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72863296 + 63218401 = 8536^2 + 7951^2 .

It is a cyclic number.

It is not a de Polignac number, because 136081697 - 2⁴ = 136081681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136081607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68040848 + 68040849.

It is an arithmetic number, because the mean of its divisors is an integer number (68040849).

Almost surely, 2^136081697 is an apocalyptic number.

It is an amenable number.

136081697 is a deficient number, since it is larger than the sum of its proper divisors (1).

136081697 is an equidigital number, since it uses as much as digits as its factorization.

136081697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 136081697 is about 11665.4059937921. The cubic root of 136081697 is about 514.3592710449.

The spelling of 136081697 in words is "one hundred thirty-six million, eighty-one thousand, six hundred ninety-seven".