23745945 has 16 divisors (see below), whose sum is σ = 38092032. Its totient is φ = 12631680.

The previous prime is 23745941. The next prime is 23745947. The reversal of 23745945 is 54954732.

It is not a de Polignac number, because 23745945 - 2² = 23745941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23745941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629 + ... + 8301.

It is an arithmetic number, because the mean of its divisors is an integer number (2380752).

Almost surely, 2^23745945 is an apocalyptic number.

It is an amenable number.

23745945 is a deficient number, since it is larger than the sum of its proper divisors (14346087).

23745945 is a wasteful number, since it uses less digits than its factorization.

23745945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112.

The product of its digits is 151200, while the sum is 39.

The square root of 23745945 is about 4872.9811204231. The cubic root of 23745945 is about 287.4284938739.

The spelling of 23745945 in words is "twenty-three million, seven hundred forty-five thousand, nine hundred forty-five".