20069219 has 2 divisors, whose sum is σ = 20069220. Its totient is φ = 20069218.

The previous prime is 20069209. The next prime is 20069243. The reversal of 20069219 is 91296002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20069219 - 2⁸ = 20068963 is a prime.

It is a super-2 number, since 2×20069219² = 805547102539922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1274744 and since 20069219 and 1274744 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20069191 and 20069200.

It is not a weakly prime, because it can be changed into another prime (20069209) 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, 10034609 + 10034610.

It is an arithmetic number, because the mean of its divisors is an integer number (10034610).

Almost surely, 2^20069219 is an apocalyptic number.

20069219 is a deficient number, since it is larger than the sum of its proper divisors (1).

20069219 is an equidigital number, since it uses as much as digits as its factorization.

20069219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 20069219 is about 4479.8681900252. The cubic root of 20069219 is about 271.7545498768.

The spelling of 20069219 in words is "twenty million, sixty-nine thousand, two hundred nineteen".