219043049 has 2 divisors, whose sum is σ = 219043050. Its totient is φ = 219043048.

The previous prime is 219043031. The next prime is 219043051. The reversal of 219043049 is 940340912.

It is a happy number.

219043049 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 can be written as a sum of positive squares in only one way, i.e., 198612649 + 20430400 = 14093^2 + 4520^2 .

It is a cyclic number.

It is not a de Polignac number, because 219043049 - 2⁸ = 219042793 is a prime.

Together with 219043051, 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 (219043949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109521524 + 109521525.

It is an arithmetic number, because the mean of its divisors is an integer number (109521525).

Almost surely, 2^219043049 is an apocalyptic number.

It is an amenable number.

219043049 is a deficient number, since it is larger than the sum of its proper divisors (1).

219043049 is an equidigital number, since it uses as much as digits as its factorization.

219043049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 219043049 is about 14800.1030063983. The cubic root of 219043049 is about 602.8045087564.

The spelling of 219043049 in words is "two hundred nineteen million, forty-three thousand, forty-nine".