135564225251 has 12 divisors (see below), whose sum is σ = 167765027472. Its totient is φ = 107259605856.

The previous prime is 135564225241. The next prime is 135564225317. The reversal of 135564225251 is 152522465531.

It is not a de Polignac number, because 135564225251 - 2³⁰ = 134490483427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135564225199 and 135564225208.

It is not an unprimeable number, because it can be changed into a prime (135564225221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57295616 + ... + 57297981.

It is an arithmetic number, because the mean of its divisors is an integer number (13980418956).

Almost surely, 2^135564225251 is an apocalyptic number.

135564225251 is a deficient number, since it is larger than the sum of its proper divisors (32200802221).

135564225251 is a wasteful number, since it uses less digits than its factorization.

135564225251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114593630 (or 114593617 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

The spelling of 135564225251 in words is "one hundred thirty-five billion, five hundred sixty-four million, two hundred twenty-five thousand, two hundred fifty-one".