1042228919 has 2 divisors, whose sum is σ = 1042228920. Its totient is φ = 1042228918.

The previous prime is 1042228903. The next prime is 1042228921. The reversal of 1042228919 is 9198222401.

It is a strong prime.

It is an emirp because it is prime and its reverse (9198222401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1042228919 - 2⁴ = 1042228903 is a prime.

It is a super-2 number, since 2×1042228919² = 2172482239199817122, which contains 22 as substring.

Together with 1042228921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042228939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521114459 + 521114460.

It is an arithmetic number, because the mean of its divisors is an integer number (521114460).

Almost surely, 2^1042228919 is an apocalyptic number.

1042228919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042228919 is an equidigital number, since it uses as much as digits as its factorization.

1042228919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1042228919 is about 32283.5704190227. The cubic root of 1042228919 is about 1013.8826855112.

The spelling of 1042228919 in words is "one billion, forty-two million, two hundred twenty-eight thousand, nine hundred nineteen".