23145133415 has 16 divisors (see below), whose sum is σ = 28011021312. Its totient is φ = 18358389504.

The previous prime is 23145133411. The next prime is 23145133433. The reversal of 23145133415 is 51433154132.

It is a cyclic number.

It is not a de Polignac number, because 23145133415 - 2² = 23145133411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145133411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041197 + ... + 1063193.

It is an arithmetic number, because the mean of its divisors is an integer number (1750688832).

Almost surely, 2^23145133415 is an apocalyptic number.

23145133415 is a deficient number, since it is larger than the sum of its proper divisors (4865887897).

23145133415 is a wasteful number, since it uses less digits than its factorization.

23145133415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786.

The product of its digits is 21600, while the sum is 32.

Adding to 23145133415 its reverse (51433154132), we get a palindrome (74578287547).

The spelling of 23145133415 in words is "twenty-three billion, one hundred forty-five million, one hundred thirty-three thousand, four hundred fifteen".