219249419 has 2 divisors, whose sum is σ = 219249420. Its totient is φ = 219249418.

The previous prime is 219249413. The next prime is 219249421. The reversal of 219249419 is 914942912.

219249419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 219249419 - 2¹⁶ = 219183883 is a prime.

It is a super-2 number, since 2×219249419² = 96140615463675122, which contains 22 as substring.

Together with 219249421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (219249413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109624709 + 109624710.

It is an arithmetic number, because the mean of its divisors is an integer number (109624710).

Almost surely, 2^219249419 is an apocalyptic number.

219249419 is a deficient number, since it is larger than the sum of its proper divisors (1).

219249419 is an equidigital number, since it uses as much as digits as its factorization.

219249419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 219249419 is about 14807.0732759719. The cubic root of 219249419 is about 602.9937587991.

The spelling of 219249419 in words is "two hundred nineteen million, two hundred forty-nine thousand, four hundred nineteen".