23166449 has 4 divisors (see below), whose sum is σ = 23314164. Its totient is φ = 23018736.

The previous prime is 23166443. The next prime is 23166457. The reversal of 23166449 is 94466132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4950625 + 18215824 = 2225^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 23166449 - 2⁸ = 23166193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23166443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73622 + ... + 73935.

It is an arithmetic number, because the mean of its divisors is an integer number (5828541).

Almost surely, 2^23166449 is an apocalyptic number.

It is an amenable number.

23166449 is a deficient number, since it is larger than the sum of its proper divisors (147715).

23166449 is a wasteful number, since it uses less digits than its factorization.

23166449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147714.

The product of its digits is 31104, while the sum is 35.

The square root of 23166449 is about 4813.1537478040. The cubic root of 23166449 is about 285.0710769682.

The spelling of 23166449 in words is "twenty-three million, one hundred sixty-six thousand, four hundred forty-nine".