23655131 has 2 divisors, whose sum is σ = 23655132. Its totient is φ = 23655130.

The previous prime is 23655103. The next prime is 23655157. The reversal of 23655131 is 13155632.

It is an a-pointer prime, because the next prime (23655157) can be obtained adding 23655131 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23655131 - 2¹⁸ = 23392987 is a prime.

It is a super-2 number, since 2×23655131² = 1119130445254322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23655131.

It is not a weakly prime, because it can be changed into another prime (23655101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827565 + 11827566.

It is an arithmetic number, because the mean of its divisors is an integer number (11827566).

Almost surely, 2^23655131 is an apocalyptic number.

23655131 is a deficient number, since it is larger than the sum of its proper divisors (1).

23655131 is an equidigital number, since it uses as much as digits as its factorization.

23655131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 23655131 is about 4863.6540789822. The cubic root of 23655131 is about 287.0616118984.

It can be divided in two parts, 23655 and 131, that multiplied together give a triangular number (3098805 = T₂₄₈₉).

The spelling of 23655131 in words is "twenty-three million, six hundred fifty-five thousand, one hundred thirty-one".