23181314 has 16 divisors (see below), whose sum is σ = 38460408. Its totient is φ = 10409472.

The previous prime is 23181289. The next prime is 23181317. The reversal of 23181314 is 41318132.

It can be written as a sum of positive squares in 4 ways, for example, as 22250089 + 931225 = 4717^2 + 965^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23181314.

It is not an unprimeable number, because it can be changed into a prime (23181317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11087 + ... + 13010.

Almost surely, 2^23181314 is an apocalyptic number.

23181314 is a deficient number, since it is larger than the sum of its proper divisors (15279094).

23181314 is a wasteful number, since it uses less digits than its factorization.

23181314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24149.

The product of its digits is 576, while the sum is 23.

The square root of 23181314 is about 4814.6977059832. The cubic root of 23181314 is about 285.1320369010.

Adding to 23181314 its reverse (41318132), we get a palindrome (64499446).

The spelling of 23181314 in words is "twenty-three million, one hundred eighty-one thousand, three hundred fourteen".