135228590 has 64 divisors (see below), whose sum is σ = 286156800. Its totient is φ = 45056256.

The previous prime is 135228589. The next prime is 135228617. The reversal of 135228590 is 95822531.

135228590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135228590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565691 + ... + 565929.

It is an arithmetic number, because the mean of its divisors is an integer number (4471200).

Almost surely, 2^135228590 is an apocalyptic number.

135228590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135228590 is an abundant number, since it is smaller than the sum of its proper divisors (150928210).

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

135228590 is a wasteful number, since it uses less digits than its factorization.

135228590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 135228590 is about 11628.7828253863. The cubic root of 135228590 is about 513.2821639931.

The spelling of 135228590 in words is "one hundred thirty-five million, two hundred twenty-eight thousand, five hundred ninety".