23985129 has 16 divisors (see below), whose sum is σ = 37096448. Its totient is φ = 13500432.

The previous prime is 23985127. The next prime is 23985133. The reversal of 23985129 is 92158932.

It is not a de Polignac number, because 23985129 - 2¹ = 23985127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23985127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7117 + ... + 9930.

It is an arithmetic number, because the mean of its divisors is an integer number (2318528).

Almost surely, 2^23985129 is an apocalyptic number.

It is an amenable number.

23985129 is a deficient number, since it is larger than the sum of its proper divisors (13111319).

23985129 is a wasteful number, since it uses less digits than its factorization.

23985129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124.

The product of its digits is 38880, while the sum is 39.

The square root of 23985129 is about 4897.4614853003. The cubic root of 23985129 is about 288.3903248261.

The spelling of 23985129 in words is "twenty-three million, nine hundred eighty-five thousand, one hundred twenty-nine".