136130557 has 2 divisors, whose sum is σ = 136130558. Its totient is φ = 136130556.

The previous prime is 136130539. The next prime is 136130581. The reversal of 136130557 is 755031631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111070521 + 25060036 = 10539^2 + 5006^2 .

It is an emirp because it is prime and its reverse (755031631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136130557 - 2¹⁹ = 135606269 is a prime.

It is a Chen prime.

It is the 11668-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136130507) by changing a digit.

It is a nontrivial repunit in base 11667.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68065278 + 68065279.

It is an arithmetic number, because the mean of its divisors is an integer number (68065279).

Almost surely, 2^136130557 is an apocalyptic number.

It is an amenable number.

136130557 is a deficient number, since it is larger than the sum of its proper divisors (1).

136130557 is an equidigital number, since it uses as much as digits as its factorization.

136130557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 136130557 is about 11667.5000321406. The cubic root of 136130557 is about 514.4208237428.

The spelling of 136130557 in words is "one hundred thirty-six million, one hundred thirty thousand, five hundred fifty-seven".