23208019 has 2 divisors, whose sum is σ = 23208020. Its totient is φ = 23208018.

The previous prime is 23208013. The next prime is 23208023. The reversal of 23208019 is 91080232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23208019 - 2¹¹ = 23205971 is a prime.

It is a super-2 number, since 2×23208019² = 1077224291808722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23207984 and 23208002.

It is not a weakly prime, because it can be changed into another prime (23208013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11604009 + 11604010.

It is an arithmetic number, because the mean of its divisors is an integer number (11604010).

Almost surely, 2^23208019 is an apocalyptic number.

23208019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23208019 is an equidigital number, since it uses as much as digits as its factorization.

23208019 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 25.

The square root of 23208019 is about 4817.4701867266. The cubic root of 23208019 is about 285.2414861029.

The spelling of 23208019 in words is "twenty-three million, two hundred eight thousand, nineteen".