1045819 has 2 divisors, whose sum is σ = 1045820. Its totient is φ = 1045818.

The previous prime is 1045801. The next prime is 1045829. The reversal of 1045819 is 9185401.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9185401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1045819 - 2⁷ = 1045691 is a prime.

It is a super-2 number, since 2×1045819² = 2187474761522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1045829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522909 + 522910.

It is an arithmetic number, because the mean of its divisors is an integer number (522910).

2^1045819 is an apocalyptic number.

1045819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045819 is an equidigital number, since it uses as much as digits as its factorization.

1045819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1045819 is about 1022.6529225500. The cubic root of 1045819 is about 101.5045497730.

The spelling of 1045819 in words is "one million, forty-five thousand, eight hundred nineteen".