22915 has 4 divisors (see below), whose sum is σ = 27504. Its totient is φ = 18328.

The previous prime is 22907. The next prime is 22921. The reversal of 22915 is 51922.

22915 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22915 - 2³ = 22907 is a prime.

It is a Duffinian number.

22915 is strictly pandigital in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 22892 and 22901.

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 in 3 ways as a sum of consecutive naturals, for example, 2287 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (6876).

2²²⁹¹⁵ is an apocalyptic number.

22915 is a deficient number, since it is larger than the sum of its proper divisors (4589).

22915 is an equidigital number, since it uses as much as digits as its factorization.

22915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588.

The product of its digits is 180, while the sum is 19.

The square root of 22915 is about 151.3770127860. The cubic root of 22915 is about 28.4035934090.

The spelling of 22915 in words is "twenty-two thousand, nine hundred fifteen".