136735961 has 2 divisors, whose sum is σ = 136735962. Its totient is φ = 136735960.

The previous prime is 136735909. The next prime is 136735967. The reversal of 136735961 is 169537631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136305625 + 430336 = 11675^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 136735961 - 2¹⁴ = 136719577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (136735967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68367980 + 68367981.

It is an arithmetic number, because the mean of its divisors is an integer number (68367981).

Almost surely, 2^136735961 is an apocalyptic number.

It is an amenable number.

136735961 is a deficient number, since it is larger than the sum of its proper divisors (1).

136735961 is an equidigital number, since it uses as much as digits as its factorization.

136735961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 41.

The square root of 136735961 is about 11693.4152838253. The cubic root of 136735961 is about 515.1822787702.

The spelling of 136735961 in words is "one hundred thirty-six million, seven hundred thirty-five thousand, nine hundred sixty-one".