136531259 has 2 divisors, whose sum is σ = 136531260. Its totient is φ = 136531258.

The previous prime is 136531249. The next prime is 136531273. The reversal of 136531259 is 952135631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136531259 - 2¹² = 136527163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136531229) 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, 68265629 + 68265630.

It is an arithmetic number, because the mean of its divisors is an integer number (68265630).

Almost surely, 2^136531259 is an apocalyptic number.

136531259 is a deficient number, since it is larger than the sum of its proper divisors (1).

136531259 is an equidigital number, since it uses as much as digits as its factorization.

136531259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 35.

The square root of 136531259 is about 11684.6591306721. The cubic root of 136531259 is about 514.9250640332.

The spelling of 136531259 in words is "one hundred thirty-six million, five hundred thirty-one thousand, two hundred fifty-nine".