136865951 has 2 divisors, whose sum is σ = 136865952. Its totient is φ = 136865950.

The previous prime is 136865917. The next prime is 136865957. The reversal of 136865951 is 159568631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136865951 - 2²⁶ = 69757087 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136865957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68432975 + 68432976.

It is an arithmetic number, because the mean of its divisors is an integer number (68432976).

Almost surely, 2^136865951 is an apocalyptic number.

136865951 is a deficient number, since it is larger than the sum of its proper divisors (1).

136865951 is an equidigital number, since it uses as much as digits as its factorization.

136865951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 136865951 is about 11698.9722198149. The cubic root of 136865951 is about 515.3454822016.

The spelling of 136865951 in words is "one hundred thirty-six million, eight hundred sixty-five thousand, nine hundred fifty-one".