90254 has 4 divisors (see below), whose sum is σ = 135384. Its totient is φ = 45126.

The previous prime is 90247. The next prime is 90263. The reversal of 90254 is 45209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45209 = 53 ⋅853.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 90254.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562 + ... + 22565.

It is an arithmetic number, because the mean of its divisors is an integer number (33846).

2⁹⁰²⁵⁴ is an apocalyptic number.

90254 is a deficient number, since it is larger than the sum of its proper divisors (45130).

90254 is a wasteful number, since it uses less digits than its factorization.

90254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45129.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 90254 is about 300.4230350689. The cubic root of 90254 is about 44.8561662677.

It can be divided in two parts, 9025 and 4, that multiplied together give a square (36100 = 190²).

The spelling of 90254 in words is "ninety thousand, two hundred fifty-four".