23122156 has 12 divisors (see below), whose sum is σ = 41769280. Its totient is φ = 11188080.

The previous prime is 23122147. The next prime is 23122213. The reversal of 23122156 is 65122132.

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 3 ways as a sum of consecutive naturals, for example, 93111 + ... + 93358.

Almost surely, 2^23122156 is an apocalyptic number.

It is an amenable number.

23122156 is a deficient number, since it is larger than the sum of its proper divisors (18647124).

23122156 is a wasteful number, since it uses less digits than its factorization.

23122156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186504 (or 186502 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 23122156 is about 4808.5503012862. The cubic root of 23122156 is about 284.8892808870.

Adding to 23122156 its reverse (65122132), we get a palindrome (88244288).

The spelling of 23122156 in words is "twenty-three million, one hundred twenty-two thousand, one hundred fifty-six".