23166401 has 2 divisors, whose sum is σ = 23166402. Its totient is φ = 23166400.

The previous prime is 23166373. The next prime is 23166421. The reversal of 23166401 is 10466132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19360000 + 3806401 = 4400^2 + 1951^2 .

It is a cyclic number.

It is not a de Polignac number, because 23166401 - 2⁶ = 23166337 is a prime.

It is not a weakly prime, because it can be changed into another prime (23166421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11583200 + 11583201.

It is an arithmetic number, because the mean of its divisors is an integer number (11583201).

Almost surely, 2^23166401 is an apocalyptic number.

It is an amenable number.

23166401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23166401 is an equidigital number, since it uses as much as digits as its factorization.

23166401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23166401 is about 4813.1487614658. The cubic root of 23166401 is about 285.0708800826.

The spelling of 23166401 in words is "twenty-three million, one hundred sixty-six thousand, four hundred one".