23115656 has 8 divisors (see below), whose sum is σ = 43341870. Its totient is φ = 11557824.

The previous prime is 23115643. The next prime is 23115661. The reversal of 23115656 is 65651132.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 2775556 = 4510^2 + 1666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1444721 + ... + 1444736.

Almost surely, 2^23115656 is an apocalyptic number.

It is an amenable number.

23115656 is a deficient number, since it is larger than the sum of its proper divisors (20226214).

23115656 is a wasteful number, since it uses less digits than its factorization.

23115656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889463 (or 2889459 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 23115656 is about 4807.8743743987. The cubic root of 23115656 is about 284.8625827730.

Adding to 23115656 its reverse (65651132), we get a palindrome (88766788).

The spelling of 23115656 in words is "twenty-three million, one hundred fifteen thousand, six hundred fifty-six".