23003145 has 24 divisors (see below), whose sum is σ = 43497792. Its totient is φ = 11152800.

The previous prime is 23003143. The next prime is 23003153. The reversal of 23003145 is 54130032.

It is not a de Polignac number, because 23003145 - 2¹ = 23003143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23003143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22741 + ... + 23730.

It is an arithmetic number, because the mean of its divisors is an integer number (1812408).

Almost surely, 2^23003145 is an apocalyptic number.

It is an amenable number.

23003145 is a deficient number, since it is larger than the sum of its proper divisors (20494647).

23003145 is a wasteful number, since it uses less digits than its factorization.

23003145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46493 (or 46490 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23003145 is about 4796.1594010208. The cubic root of 23003145 is about 284.3996596576.

Adding to 23003145 its reverse (54130032), we get a palindrome (77133177).

It can be divided in two parts, 2300 and 3145, that added together give a palindrome (5445).

The spelling of 23003145 in words is "twenty-three million, three thousand, one hundred forty-five".