23504145 has 16 divisors (see below), whose sum is σ = 42979200. Its totient is φ = 10744704.

The previous prime is 23504087. The next prime is 23504147. The reversal of 23504145 is 54140532.

It is not a de Polignac number, because 23504145 - 2⁹ = 23503633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23504147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111820 + ... + 112029.

It is an arithmetic number, because the mean of its divisors is an integer number (2686200).

Almost surely, 2^23504145 is an apocalyptic number.

It is an amenable number.

23504145 is a deficient number, since it is larger than the sum of its proper divisors (19475055).

23504145 is a wasteful number, since it uses less digits than its factorization.

23504145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223864.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 23504145 is about 4848.1073626726. The cubic root of 23504145 is about 286.4495554276.

Adding to 23504145 its reverse (54140532), we get a palindrome (77644677).

The spelling of 23504145 in words is "twenty-three million, five hundred four thousand, one hundred forty-five".