136655251 has 2 divisors, whose sum is σ = 136655252. Its totient is φ = 136655250.

The previous prime is 136655237. The next prime is 136655263. The reversal of 136655251 is 152556631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136655251 - 2⁵ = 136655219 is a prime.

It is not a weakly prime, because it can be changed into another prime (136655291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68327625 + 68327626.

It is an arithmetic number, because the mean of its divisors is an integer number (68327626).

Almost surely, 2^136655251 is an apocalyptic number.

136655251 is a deficient number, since it is larger than the sum of its proper divisors (1).

136655251 is an equidigital number, since it uses as much as digits as its factorization.

136655251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 34.

The square root of 136655251 is about 11689.9636868555. The cubic root of 136655251 is about 515.0808946983.

The spelling of 136655251 in words is "one hundred thirty-six million, six hundred fifty-five thousand, two hundred fifty-one".