136250557 has 2 divisors, whose sum is σ = 136250558. Its totient is φ = 136250556.

The previous prime is 136250537. The next prime is 136250561. The reversal of 136250557 is 755052631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135349956 + 900601 = 11634^2 + 949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136250557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136250537) 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, 68125278 + 68125279.

It is an arithmetic number, because the mean of its divisors is an integer number (68125279).

Almost surely, 2^136250557 is an apocalyptic number.

It is an amenable number.

136250557 is a deficient number, since it is larger than the sum of its proper divisors (1).

136250557 is an equidigital number, since it uses as much as digits as its factorization.

136250557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 136250557 is about 11672.6413891630. The cubic root of 136250557 is about 514.5719344865.

The spelling of 136250557 in words is "one hundred thirty-six million, two hundred fifty thousand, five hundred fifty-seven".