90132775 has 6 divisors (see below), whose sum is σ = 111764672. Its totient is φ = 72106200.

The previous prime is 90132769. The next prime is 90132781. The reversal of 90132775 is 57723109.

It is an interprime number because it is at equal distance from previous prime (90132769) and next prime (90132781).

It is not a de Polignac number, because 90132775 - 2¹¹ = 90130727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90132775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1802631 + ... + 1802680.

Almost surely, 2^90132775 is an apocalyptic number.

90132775 is a deficient number, since it is larger than the sum of its proper divisors (21631897).

90132775 is a wasteful number, since it uses less digits than its factorization.

90132775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605321 (or 3605316 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 90132775 is about 9493.8282584003. The cubic root of 90132775 is about 448.3607435998.

The spelling of 90132775 in words is "ninety million, one hundred thirty-two thousand, seven hundred seventy-five".