135898902 has 24 divisors (see below), whose sum is σ = 300714336. Its totient is φ = 44335536.

The previous prime is 135898871. The next prime is 135898937. The reversal of 135898902 is 209898531.

It is a happy number.

It is a congruent number.

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, 79473 + ... + 81164.

It is an arithmetic number, because the mean of its divisors is an integer number (12529764).

Almost surely, 2^135898902 is an apocalyptic number.

135898902 is an abundant number, since it is smaller than the sum of its proper divisors (164815434).

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

135898902 is a wasteful number, since it uses less digits than its factorization.

135898902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160692 (or 160689 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 135898902 is about 11657.5684428615. The cubic root of 135898902 is about 514.1288593738.

The spelling of 135898902 in words is "one hundred thirty-five million, eight hundred ninety-eight thousand, nine hundred two".