90501 has 8 divisors (see below), whose sum is σ = 122304. Its totient is φ = 59520.

The previous prime is 90499. The next prime is 90511. The reversal of 90501 is 10509.

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

It is not a de Polignac number, because 90501 - 2¹ = 90499 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90511) 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, 136 + ... + 446.

It is an arithmetic number, because the mean of its divisors is an integer number (15288).

2⁹⁰⁵⁰¹ is an apocalyptic number.

It is an amenable number.

90501 is a deficient number, since it is larger than the sum of its proper divisors (31803).

90501 is a wasteful number, since it uses less digits than its factorization.

90501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 90501 is about 300.8338411815. The cubic root of 90501 is about 44.8970485971.

The spelling of 90501 in words is "ninety thousand, five hundred one".