135164220 has 48 divisors (see below), whose sum is σ = 379330560. Its totient is φ = 35960896.

The previous prime is 135164203. The next prime is 135164291. The reversal of 135164220 is 22461531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26389 + ... + 31091.

It is an arithmetic number, because the mean of its divisors is an integer number (7902720).

Almost surely, 2^135164220 is an apocalyptic number.

135164220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135164220 is an abundant number, since it is smaller than the sum of its proper divisors (244166340).

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

135164220 is a wasteful number, since it uses less digits than its factorization.

135164220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194 (or 5192 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 135164220 is about 11626.0147944169. The cubic root of 135164220 is about 513.2007087902.

The spelling of 135164220 in words is "one hundred thirty-five million, one hundred sixty-four thousand, two hundred twenty".