20092019 has 2 divisors, whose sum is σ = 20092020. Its totient is φ = 20092018.

The previous prime is 20092001. The next prime is 20092021. The reversal of 20092019 is 91029002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20092019 is a prime.

It is a super-2 number, since 2×20092019² = 807378454992722, which contains 22 as substring.

Together with 20092021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20091985 and 20092003.

It is not a weakly prime, because it can be changed into another prime (20092049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10046009 + 10046010.

It is an arithmetic number, because the mean of its divisors is an integer number (10046010).

Almost surely, 2^20092019 is an apocalyptic number.

20092019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20092019 is an equidigital number, since it uses as much as digits as its factorization.

20092019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 20092019 is about 4482.4121854198. The cubic root of 20092019 is about 271.8574214908.

The spelling of 20092019 in words is "twenty million, ninety-two thousand, nineteen".