135302128913 has 6 divisors (see below), whose sum is σ = 157392272466. Its totient is φ = 115973253312.

The previous prime is 135302128799. The next prime is 135302128943. The reversal of 135302128913 is 319821203531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 79722651904 + 55579477009 = 282352^2 + 235753^2 .

It is not a de Polignac number, because 135302128913 - 2¹⁸ = 135301866769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135302128943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1380633920 + ... + 1380634017.

It is an arithmetic number, because the mean of its divisors is an integer number (26232045411).

Almost surely, 2^135302128913 is an apocalyptic number.

It is an amenable number.

135302128913 is a deficient number, since it is larger than the sum of its proper divisors (22090143553).

135302128913 is an equidigital number, since it uses as much as digits as its factorization.

135302128913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761267951 (or 2761267944 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 135302128913 in words is "one hundred thirty-five billion, three hundred two million, one hundred twenty-eight thousand, nine hundred thirteen".