136262669 has 2 divisors, whose sum is σ = 136262670. Its totient is φ = 136262668.

The previous prime is 136262653. The next prime is 136262689. The reversal of 136262669 is 966262631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 14160169 = 11050^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 136262669 - 2⁴ = 136262653 is a prime.

It is a super-2 number, since 2×136262669² = 37135029926007122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136262689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68131334 + 68131335.

It is an arithmetic number, because the mean of its divisors is an integer number (68131335).

Almost surely, 2^136262669 is an apocalyptic number.

It is an amenable number.

136262669 is a deficient number, since it is larger than the sum of its proper divisors (1).

136262669 is an equidigital number, since it uses as much as digits as its factorization.

136262669 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 136262669 is about 11673.1601976500. The cubic root of 136262669 is about 514.5871816672.

The spelling of 136262669 in words is "one hundred thirty-six million, two hundred sixty-two thousand, six hundred sixty-nine".