135015255361 has 16 divisors (see below), whose sum is σ = 155281674240. Its totient is φ = 114993956880.

The previous prime is 135015255307. The next prime is 135015255443. The reversal of 135015255361 is 163552510531.

It is a cyclic number.

It is not a de Polignac number, because 135015255361 - 2²⁵ = 134981700929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135015255361.

It is not an unprimeable number, because it can be changed into a prime (135015255461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3580596 + ... + 3618106.

It is an arithmetic number, because the mean of its divisors is an integer number (9705104640).

Almost surely, 2^135015255361 is an apocalyptic number.

It is an amenable number.

135015255361 is a deficient number, since it is larger than the sum of its proper divisors (20266418879).

135015255361 is a wasteful number, since it uses less digits than its factorization.

135015255361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40764.

The product of its (nonzero) digits is 67500, while the sum is 37.

Adding to 135015255361 its reverse (163552510531), we get a palindrome (298567765892).

The spelling of 135015255361 in words is "one hundred thirty-five billion, fifteen million, two hundred fifty-five thousand, three hundred sixty-one".