136555157 has 2 divisors, whose sum is σ = 136555158. Its totient is φ = 136555156.

The previous prime is 136555019. The next prime is 136555207. The reversal of 136555157 is 751555631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114361636 + 22193521 = 10694^2 + 4711^2 .

It is an emirp because it is prime and its reverse (751555631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136555157 - 2¹⁰ = 136554133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136555157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136555357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68277578 + 68277579.

It is an arithmetic number, because the mean of its divisors is an integer number (68277579).

Almost surely, 2^136555157 is an apocalyptic number.

It is an amenable number.

136555157 is a deficient number, since it is larger than the sum of its proper divisors (1).

136555157 is an equidigital number, since it uses as much as digits as its factorization.

136555157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78750, while the sum is 38.

The square root of 136555157 is about 11685.6817088264. The cubic root of 136555157 is about 514.9551058990.

The spelling of 136555157 in words is "one hundred thirty-six million, five hundred fifty-five thousand, one hundred fifty-seven".