135936158497 has 2 divisors, whose sum is σ = 135936158498. Its totient is φ = 135936158496.

The previous prime is 135936158363. The next prime is 135936158539. The reversal of 135936158497 is 794851639531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134125145361 + 1811013136 = 366231^2 + 42556^2 .

It is a cyclic number.

It is not a de Polignac number, because 135936158497 - 2²³ = 135927769889 is a prime.

It is not a weakly prime, because it can be changed into another prime (135936168497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67968079248 + 67968079249.

It is an arithmetic number, because the mean of its divisors is an integer number (67968079249).

Almost surely, 2^135936158497 is an apocalyptic number.

It is an amenable number.

135936158497 is a deficient number, since it is larger than the sum of its proper divisors (1).

135936158497 is an equidigital number, since it uses as much as digits as its factorization.

135936158497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24494400, while the sum is 61.

The spelling of 135936158497 in words is "one hundred thirty-five billion, nine hundred thirty-six million, one hundred fifty-eight thousand, four hundred ninety-seven".