23145733 has 12 divisors (see below), whose sum is σ = 25256928. Its totient is φ = 21200400.

The previous prime is 23145713. The next prime is 23145791. The reversal of 23145733 is 33754132.

It is a de Polignac number, because none of the positive numbers 2^k-23145733 is a prime.

It is a super-2 number, since 2×23145733² = 1071449912214578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145713) 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, 25066 + ... + 25972.

It is an arithmetic number, because the mean of its divisors is an integer number (2104744).

Almost surely, 2^23145733 is an apocalyptic number.

It is an amenable number.

23145733 is a deficient number, since it is larger than the sum of its proper divisors (2111195).

23145733 is a wasteful number, since it uses less digits than its factorization.

23145733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1071 counting only the distinct ones).

The product of its digits is 7560, while the sum is 28.

The square root of 23145733 is about 4811.0012471418. The cubic root of 23145733 is about 284.9860791395.

Adding to 23145733 its reverse (33754132), we get a palindrome (56899865).

The spelling of 23145733 in words is "twenty-three million, one hundred forty-five thousand, seven hundred thirty-three".