23542219 has 2 divisors, whose sum is σ = 23542220. Its totient is φ = 23542218.

The previous prime is 23542193. The next prime is 23542243. The reversal of 23542219 is 91224532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23542219 - 2¹⁹ = 23017931 is a prime.

It is a super-2 number, since 2×23542219² = 1108472150887922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23542019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11771109 + 11771110.

It is an arithmetic number, because the mean of its divisors is an integer number (11771110).

Almost surely, 2^23542219 is an apocalyptic number.

23542219 is a deficient number, since it is larger than the sum of its proper divisors (1).

23542219 is an equidigital number, since it uses as much as digits as its factorization.

23542219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 23542219 is about 4852.0324607323. The cubic root of 23542219 is about 286.6041437169.

The spelling of 23542219 in words is "twenty-three million, five hundred forty-two thousand, two hundred nineteen".