135441515125013 has 2 divisors, whose sum is σ = 135441515125014. Its totient is φ = 135441515125012.

The previous prime is 135441515125003. The next prime is 135441515125057. The reversal of 135441515125013 is 310521515144531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135430545076369 + 10970048644 = 11637463^2 + 104738^2 .

It is a cyclic number.

It is not a de Polignac number, because 135441515125013 - 2⁸ = 135441515124757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135441515125003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67720757562506 + 67720757562507.

It is an arithmetic number, because the mean of its divisors is an integer number (67720757562507).

Almost surely, 2^{135441515125013} is an apocalyptic number.

It is an amenable number.

135441515125013 is a deficient number, since it is larger than the sum of its proper divisors (1).

135441515125013 is an equidigital number, since it uses as much as digits as its factorization.

135441515125013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 135441515125013 in words is "one hundred thirty-five trillion, four hundred forty-one billion, five hundred fifteen million, one hundred twenty-five thousand, thirteen".