135521422524 has 36 divisors (see below), whose sum is σ = 342584383960. Its totient is φ = 45171652320.

The previous prime is 135521422523. The next prime is 135521422541. The reversal of 135521422524 is 425224125531.

135521422524 is a `hidden beast` number, since 13 + 552 + 1 + 42 + 2 + 52 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135521422523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 794559 + ... + 949929.

Almost surely, 2^135521422524 is an apocalyptic number.

It is an amenable number.

135521422524 is an abundant number, since it is smaller than the sum of its proper divisors (207062961436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135521422524 is a wasteful number, since it uses less digits than its factorization.

135521422524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179610 (or 179605 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The spelling of 135521422524 in words is "one hundred thirty-five billion, five hundred twenty-one million, four hundred twenty-two thousand, five hundred twenty-four".