135136266413 has 2 divisors, whose sum is σ = 135136266414. Its totient is φ = 135136266412.

The previous prime is 135136266403. The next prime is 135136266479. The reversal of 135136266413 is 314662631531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79106062564 + 56030203849 = 281258^2 + 236707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135136266413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135136266403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67568133206 + 67568133207.

It is an arithmetic number, because the mean of its divisors is an integer number (67568133207).

Almost surely, 2^135136266413 is an apocalyptic number.

It is an amenable number.

135136266413 is a deficient number, since it is larger than the sum of its proper divisors (1).

135136266413 is an equidigital number, since it uses as much as digits as its factorization.

135136266413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 41.

Adding to 135136266413 its reverse (314662631531), we get a palindrome (449798897944).

The spelling of 135136266413 in words is "one hundred thirty-five billion, one hundred thirty-six million, two hundred sixty-six thousand, four hundred thirteen".