23506169 has 2 divisors, whose sum is σ = 23506170. Its totient is φ = 23506168.

The previous prime is 23506159. The next prime is 23506187. The reversal of 23506169 is 96160532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 5697769 = 4220^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 23506169 - 2²⁰ = 22457593 is a prime.

It is a super-2 number, since 2×23506169² = 1105079962113122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23506139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11753084 + 11753085.

It is an arithmetic number, because the mean of its divisors is an integer number (11753085).

Almost surely, 2^23506169 is an apocalyptic number.

It is an amenable number.

23506169 is a deficient number, since it is larger than the sum of its proper divisors (1).

23506169 is an equidigital number, since it uses as much as digits as its factorization.

23506169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 23506169 is about 4848.3160994308. The cubic root of 23506169 is about 286.4577774846.

The spelling of 23506169 in words is "twenty-three million, five hundred six thousand, one hundred sixty-nine".