23123985 has 24 divisors (see below), whose sum is σ = 38363904. Its totient is φ = 11881440.

The previous prime is 23123957. The next prime is 23123987. The reversal of 23123985 is 58932132.

It is not a de Polignac number, because 23123985 - 2⁶ = 23123921 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103584 + ... + 103806.

It is an arithmetic number, because the mean of its divisors is an integer number (1598496).

Almost surely, 2^23123985 is an apocalyptic number.

It is an amenable number.

23123985 is a deficient number, since it is larger than the sum of its proper divisors (15239919).

23123985 is an equidigital number, since it uses as much as digits as its factorization.

23123985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 262 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 23123985 is about 4808.7404795851. The cubic root of 23123985 is about 284.8967924235.

The spelling of 23123985 in words is "twenty-three million, one hundred twenty-three thousand, nine hundred eighty-five".