90201 has 8 divisors (see below), whose sum is σ = 121824. Its totient is φ = 59360.

The previous prime is 90199. The next prime is 90203. The reversal of 90201 is 10209.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90199) and next prime (90203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90201 - 2¹ = 90199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90203) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 181 + ... + 461.

It is an arithmetic number, because the mean of its divisors is an integer number (15228).

2⁹⁰²⁰¹ is an apocalyptic number.

It is an amenable number.

90201 is a deficient number, since it is larger than the sum of its proper divisors (31623).

90201 is a wasteful number, since it uses less digits than its factorization.

90201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 90201 is about 300.3348131669. The cubic root of 90201 is about 44.8473842292.

The spelling of 90201 in words is "ninety thousand, two hundred one".