23145124545 has 16 divisors (see below), whose sum is σ = 41146888320. Its totient is φ = 12344066352.

The previous prime is 23145124529. The next prime is 23145124591. The reversal of 23145124545 is 54542154132.

It is not a de Polignac number, because 23145124545 - 2⁴ = 23145124529 is a prime.

It is a super-2 number, since 2×23145124545² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85722549 + ... + 85722818.

It is an arithmetic number, because the mean of its divisors is an integer number (2571680520).

Almost surely, 2^23145124545 is an apocalyptic number.

It is an amenable number.

23145124545 is a deficient number, since it is larger than the sum of its proper divisors (18001763775).

23145124545 is a wasteful number, since it uses less digits than its factorization.

23145124545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171445381 (or 171445375 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 23145124545 its reverse (54542154132), we get a palindrome (77687278677).

The spelling of 23145124545 in words is "twenty-three billion, one hundred forty-five million, one hundred twenty-four thousand, five hundred forty-five".