135252594 has 12 divisors (see below), whose sum is σ = 293047326. Its totient is φ = 45084192.

The previous prime is 135252589. The next prime is 135252613. The reversal of 135252594 is 495252531.

It is a happy number.

135252594 is a `hidden beast` number, since 13 + 5 + 2 + 52 + 594 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86769225 + 48483369 = 9315^2 + 6963^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3756999 + ... + 3757034.

Almost surely, 2^135252594 is an apocalyptic number.

135252594 is an abundant number, since it is smaller than the sum of its proper divisors (157794732).

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

135252594 is a wasteful number, since it uses less digits than its factorization.

135252594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514041 (or 7514038 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 135252594 is about 11629.8148738490. The cubic root of 135252594 is about 513.3125325617.

The spelling of 135252594 in words is "one hundred thirty-five million, two hundred fifty-two thousand, five hundred ninety-four".