23354189 has 2 divisors, whose sum is σ = 23354190. Its totient is φ = 23354188.

The previous prime is 23354171. The next prime is 23354197. The reversal of 23354189 is 98145332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23136100 + 218089 = 4810^2 + 467^2 .

It is a cyclic number.

It is not a de Polignac number, because 23354189 - 2⁸ = 23353933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23354489) 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, 11677094 + 11677095.

It is an arithmetic number, because the mean of its divisors is an integer number (11677095).

Almost surely, 2^23354189 is an apocalyptic number.

It is an amenable number.

23354189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23354189 is an equidigital number, since it uses as much as digits as its factorization.

23354189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 23354189 is about 4832.6171998204. The cubic root of 23354189 is about 285.8390743822.

The spelling of 23354189 in words is "twenty-three million, three hundred fifty-four thousand, one hundred eighty-nine".