135208545992 has 48 divisors (see below), whose sum is σ = 277347695940. Its totient is φ = 61760544768.

The previous prime is 135208545971. The next prime is 135208546021. The reversal of 135208545992 is 299545802531.

It can be written as a sum of positive squares in 6 ways, for example, as 37135602436 + 98072943556 = 192706^2 + 313166^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384353 + ... + 646640.

Almost surely, 2^135208545992 is an apocalyptic number.

It is an amenable number.

135208545992 is an abundant number, since it is smaller than the sum of its proper divisors (142139149948).

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

135208545992 is a wasteful number, since it uses less digits than its factorization.

135208545992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031122 (or 1031105 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 135208545992 in words is "one hundred thirty-five billion, two hundred eight million, five hundred forty-five thousand, nine hundred ninety-two".