90515 has 8 divisors (see below), whose sum is σ = 111408. Its totient is φ = 70560.

The previous prime is 90511. The next prime is 90523. The reversal of 90515 is 51509.

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

It is not a de Polignac number, because 90515 - 2² = 90511 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (90511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 425.

It is an arithmetic number, because the mean of its divisors is an integer number (13926).

2⁹⁰⁵¹⁵ is an apocalyptic number.

90515 is a deficient number, since it is larger than the sum of its proper divisors (20893).

90515 is a wasteful number, since it uses less digits than its factorization.

90515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 90515 is about 300.8571089404. The cubic root of 90515 is about 44.8993635854.

The spelling of 90515 in words is "ninety thousand, five hundred fifteen".