135436251564 has 36 divisors (see below), whose sum is σ = 342886897080. Its totient is φ = 45074979840.

The previous prime is 135436251557. The next prime is 135436251589. The reversal of 135436251564 is 465152634531.

It is a happy number.

135436251564 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 3 + 625 + 15 + 6 + 4 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2911494 + ... + 2957645.

It is an arithmetic number, because the mean of its divisors is an integer number (9524636030).

Almost surely, 2^135436251564 is an apocalyptic number.

It is an amenable number.

135436251564 is an abundant number, since it is smaller than the sum of its proper divisors (207450645516).

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

135436251564 is a wasteful number, since it uses less digits than its factorization.

135436251564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869790 (or 5869785 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 135436251564 in words is "one hundred thirty-five billion, four hundred thirty-six million, two hundred fifty-one thousand, five hundred sixty-four".