23681156 has 6 divisors (see below), whose sum is σ = 41442030. Its totient is φ = 11840576.

The previous prime is 23681143. The next prime is 23681171. The reversal of 23681156 is 65118632.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23367556 + 313600 = 4834^2 + 560^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2960141 + ... + 2960148.

It is an arithmetic number, because the mean of its divisors is an integer number (6907005).

Almost surely, 2^23681156 is an apocalyptic number.

It is an amenable number.

23681156 is a deficient number, since it is larger than the sum of its proper divisors (17760874).

23681156 is a wasteful number, since it uses less digits than its factorization.

23681156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920293 (or 5920291 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 23681156 is about 4866.3288010573. The cubic root of 23681156 is about 287.1668468596.

Adding to 23681156 its reverse (65118632), we get a palindrome (88799788).

The spelling of 23681156 in words is "twenty-three million, six hundred eighty-one thousand, one hundred fifty-six".