23345145 has 64 divisors (see below), whose sum is σ = 44064000. Its totient is φ = 11708928.

The previous prime is 23345143. The next prime is 23345149. The reversal of 23345145 is 54154332.

It is not a de Polignac number, because 23345145 - 2¹ = 23345143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23345141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 262261 + ... + 262349.

It is an arithmetic number, because the mean of its divisors is an integer number (688500).

Almost surely, 2^23345145 is an apocalyptic number.

It is an amenable number.

23345145 is a deficient number, since it is larger than the sum of its proper divisors (20718855).

23345145 is a wasteful number, since it uses less digits than its factorization.

23345145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 193 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23345145 is about 4831.6813843630. The cubic root of 23345145 is about 285.8021721893.

Adding to 23345145 its reverse (54154332), we get a palindrome (77499477).

The spelling of 23345145 in words is "twenty-three million, three hundred forty-five thousand, one hundred forty-five".