23145524 has 24 divisors (see below), whose sum is σ = 42245280. Its totient is φ = 11085984.

The previous prime is 23145487. The next prime is 23145527. The reversal of 23145524 is 42554132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23145493 and 23145502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7847 + ... + 10385.

It is an arithmetic number, because the mean of its divisors is an integer number (1760220).

Almost surely, 2^23145524 is an apocalyptic number.

It is an amenable number.

23145524 is a deficient number, since it is larger than the sum of its proper divisors (19099756).

23145524 is a wasteful number, since it uses less digits than its factorization.

23145524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2637 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 23145524 is about 4810.9795260425. The cubic root of 23145524 is about 284.9852213533.

Adding to 23145524 its reverse (42554132), we get a palindrome (65699656).

The spelling of 23145524 in words is "twenty-three million, one hundred forty-five thousand, five hundred twenty-four".