23181242 has 24 divisors (see below), whose sum is σ = 41086368. Its totient is φ = 9608760.

The previous prime is 23181241. The next prime is 23181253. The reversal of 23181242 is 24218132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23181241) 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, 12593 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (1711932).

Almost surely, 2^23181242 is an apocalyptic number.

23181242 is a deficient number, since it is larger than the sum of its proper divisors (17905126).

23181242 is a wasteful number, since it uses less digits than its factorization.

23181242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1763 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 23181242 is about 4814.6902288725. The cubic root of 23181242 is about 285.1317416987.

Adding to 23181242 its reverse (24218132), we get a palindrome (47399374).

The spelling of 23181242 in words is "twenty-three million, one hundred eighty-one thousand, two hundred forty-two".