90135075 has 24 divisors (see below), whose sum is σ = 150212608. Its totient is φ = 47688480.

The previous prime is 90135061. The next prime is 90135083. The reversal of 90135075 is 57053109.

It is a happy number.

It is not a de Polignac number, because 90135075 - 2⁸ = 90134819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4794 + ... + 14256.

Almost surely, 2^90135075 is an apocalyptic number.

90135075 is a deficient number, since it is larger than the sum of its proper divisors (60077533).

90135075 is a wasteful number, since it uses less digits than its factorization.

90135075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9603 (or 9598 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 90135075 is about 9493.9493889529. The cubic root of 90135075 is about 448.3645573103.

The spelling of 90135075 in words is "ninety million, one hundred thirty-five thousand, seventy-five".