23145243 has 12 divisors (see below), whose sum is σ = 33921384. Its totient is φ = 14027200.

The previous prime is 23145209. The next prime is 23145271. The reversal of 23145243 is 34254132.

It is not a de Polignac number, because 23145243 - 2⁶ = 23145179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23145203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31518 + ... + 32243.

It is an arithmetic number, because the mean of its divisors is an integer number (2826782).

Almost surely, 2^23145243 is an apocalyptic number.

23145243 is a deficient number, since it is larger than the sum of its proper divisors (10776141).

23145243 is a wasteful number, since it uses less digits than its factorization.

23145243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63786 (or 63775 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 23145243 is about 4810.9503219219. The cubic root of 23145243 is about 284.9840680537.

Adding to 23145243 its reverse (34254132), we get a palindrome (57399375).

Subtracting 23145243 from its reverse (34254132), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2314 and 5243, that added together give a palindrome (7557).

The spelling of 23145243 in words is "twenty-three million, one hundred forty-five thousand, two hundred forty-three".