23163188 has 6 divisors (see below), whose sum is σ = 40535586. Its totient is φ = 11581592.

The previous prime is 23163187. The next prime is 23163193. The reversal of 23163188 is 88136132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14531344 + 8631844 = 3812^2 + 2938^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163187) by changing a digit.

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 as a sum of consecutive naturals, namely, 2895395 + ... + 2895402.

It is an arithmetic number, because the mean of its divisors is an integer number (6755931).

Almost surely, 2^23163188 is an apocalyptic number.

It is an amenable number.

23163188 is a deficient number, since it is larger than the sum of its proper divisors (17372398).

23163188 is a wasteful number, since it uses less digits than its factorization.

23163188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790801 (or 5790799 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 23163188 is about 4812.8149767054. The cubic root of 23163188 is about 285.0577004339.

The spelling of 23163188 in words is "twenty-three million, one hundred sixty-three thousand, one hundred eighty-eight".