135502290 has 96 divisors (see below), whose sum is σ = 439261056. Its totient is φ = 28154880.

The previous prime is 135502273. The next prime is 135502309. The reversal of 135502290 is 92205531.

135502290 is a `hidden beast` number, since 1 + 3 + 550 + 22 + 90 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2847 + ... + 16706.

It is an arithmetic number, because the mean of its divisors is an integer number (4575636).

Almost surely, 2^135502290 is an apocalyptic number.

135502290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135502290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219630528).

135502290 is an abundant number, since it is smaller than the sum of its proper divisors (303758766).

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

135502290 is a wasteful number, since it uses less digits than its factorization.

135502290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19584 (or 19581 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 135502290 is about 11640.5450903297. The cubic root of 135502290 is about 513.6282216201.

The spelling of 135502290 in words is "one hundred thirty-five million, five hundred two thousand, two hundred ninety".