23124645 has 12 divisors (see below), whose sum is σ = 40082796. Its totient is φ = 12333120.

The previous prime is 23124631. The next prime is 23124671. The reversal of 23124645 is 54642132.

23124645 is a `hidden beast` number, since 2 + 3 + 12 + 4 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17564481 + 5560164 = 4191^2 + 2358^2 .

It is not a de Polignac number, because 23124645 - 2⁹ = 23124133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256896 + ... + 256985.

It is an arithmetic number, because the mean of its divisors is an integer number (3340233).

Almost surely, 2^23124645 is an apocalyptic number.

It is an amenable number.

23124645 is a deficient number, since it is larger than the sum of its proper divisors (16958151).

23124645 is a wasteful number, since it uses less digits than its factorization.

23124645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513892 (or 513889 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 23124645 is about 4808.8091041338. The cubic root of 23124645 is about 284.8995028862.

Adding to 23124645 its reverse (54642132), we get a palindrome (77766777).

The spelling of 23124645 in words is "twenty-three million, one hundred twenty-four thousand, six hundred forty-five".