136799775157 has 2 divisors, whose sum is σ = 136799775158. Its totient is φ = 136799775156.

The previous prime is 136799775143. The next prime is 136799775169. The reversal of 136799775157 is 751577997631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122042627716 + 14757147441 = 349346^2 + 121479^2 .

It is an emirp because it is prime and its reverse (751577997631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136799775157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136799775092 and 136799775101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136799175157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68399887578 + 68399887579.

It is an arithmetic number, because the mean of its divisors is an integer number (68399887579).

Almost surely, 2^136799775157 is an apocalyptic number.

It is an amenable number.

136799775157 is a deficient number, since it is larger than the sum of its proper divisors (1).

136799775157 is an equidigital number, since it uses as much as digits as its factorization.

136799775157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87516450, while the sum is 67.

The spelling of 136799775157 in words is "one hundred thirty-six billion, seven hundred ninety-nine million, seven hundred seventy-five thousand, one hundred fifty-seven".