23012985 has 16 divisors (see below), whose sum is σ = 38987136. Its totient is φ = 11551488.

The previous prime is 23012963. The next prime is 23012993. The reversal of 23012985 is 58921032.

It is a happy number.

It is not a de Polignac number, because 23012985 - 2⁵ = 23012953 is a prime.

It is a super-2 number, since 2×23012985² = 1059194957220450, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44869 + ... + 45378.

It is an arithmetic number, because the mean of its divisors is an integer number (2436696).

Almost surely, 2^23012985 is an apocalyptic number.

It is an amenable number.

23012985 is a deficient number, since it is larger than the sum of its proper divisors (15974151).

23012985 is a wasteful number, since it uses less digits than its factorization.

23012985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90272.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23012985 is about 4797.1851121257. The cubic root of 23012985 is about 284.4402061961.

The spelling of 23012985 in words is "twenty-three million, twelve thousand, nine hundred eighty-five".