90235 has 4 divisors (see below), whose sum is σ = 108288. Its totient is φ = 72184.

The previous prime is 90227. The next prime is 90239. The reversal of 90235 is 53209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53209 = 13 ⋅4093.

It is a cyclic number.

It is not a de Polignac number, because 90235 - 2³ = 90227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9019 + ... + 9028.

It is an arithmetic number, because the mean of its divisors is an integer number (27072).

2⁹⁰²³⁵ is an apocalyptic number.

90235 is a deficient number, since it is larger than the sum of its proper divisors (18053).

90235 is a wasteful number, since it uses less digits than its factorization.

90235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18052.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 90235 is about 300.3914113286. The cubic root of 90235 is about 44.8530183852.

It can be divided in two parts, 90 and 235, that added together give a triangular number (325 = T₂₅).

The spelling of 90235 in words is "ninety thousand, two hundred thirty-five".