135583228 has 48 divisors (see below), whose sum is σ = 280814688. Its totient is φ = 56576000.

The previous prime is 135583213. The next prime is 135583271. The reversal of 135583228 is 822385531.

135583228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 28458 + ... + 32878.

It is an arithmetic number, because the mean of its divisors is an integer number (5850306).

Almost surely, 2^135583228 is an apocalyptic number.

It is an amenable number.

135583228 is an abundant number, since it is smaller than the sum of its proper divisors (145231460).

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

135583228 is a wasteful number, since it uses less digits than its factorization.

135583228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4492 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 135583228 is about 11644.0211267414. The cubic root of 135583228 is about 513.7304677802.

The spelling of 135583228 in words is "one hundred thirty-five million, five hundred eighty-three thousand, two hundred twenty-eight".