23271345 has 24 divisors (see below), whose sum is σ = 41198976. Its totient is φ = 12146208.

The previous prime is 23271337. The next prime is 23271349. The reversal of 23271345 is 54317232.

It is not a de Polignac number, because 23271345 - 2³ = 23271337 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23271349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3387 + ... + 7616.

It is an arithmetic number, because the mean of its divisors is an integer number (1716624).

Almost surely, 2^23271345 is an apocalyptic number.

It is an amenable number.

23271345 is a deficient number, since it is larger than the sum of its proper divisors (17927631).

23271345 is a wasteful number, since it uses less digits than its factorization.

23271345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061 (or 11058 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 23271345 is about 4824.0382461170. The cubic root of 23271345 is about 285.5006895844.

Adding to 23271345 its reverse (54317232), we get a palindrome (77588577).

The spelling of 23271345 in words is "twenty-three million, two hundred seventy-one thousand, three hundred forty-five".