23143222 has 32 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 10501248.

The previous prime is 23143199. The next prime is 23143259. The reversal of 23143222 is 22234132.

It is a self number, because there is not a number n which added to its sum of digits gives 23143222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166429 + ... + 166567.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^23143222 is an apocalyptic number.

23143222 is a deficient number, since it is larger than the sum of its proper divisors (14959178).

23143222 is a wasteful number, since it uses less digits than its factorization.

23143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 576, while the sum is 19.

The square root of 23143222 is about 4810.7402756748. The cubic root of 23143222 is about 284.9757730509.

Adding to 23143222 its reverse (22234132), we get a palindrome (45377354).

The spelling of 23143222 in words is "twenty-three million, one hundred forty-three thousand, two hundred twenty-two".