135521014552 has 128 divisors (see below), whose sum is σ = 331309440000. Its totient is φ = 50392742400.

The previous prime is 135521014507. The next prime is 135521014567. The reversal of 135521014552 is 255410125531.

135521014552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6521074 + ... + 6541822.

It is an arithmetic number, because the mean of its divisors is an integer number (2588355000).

Almost surely, 2^135521014552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135521014552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165654720000).

135521014552 is an abundant number, since it is smaller than the sum of its proper divisors (195788425448).

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

135521014552 is a wasteful number, since it uses less digits than its factorization.

135521014552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21257 (or 21253 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 135521014552 in words is "one hundred thirty-five billion, five hundred twenty-one million, fourteen thousand, five hundred fifty-two".