1013819 has 2 divisors, whose sum is σ = 1013820. Its totient is φ = 1013818.

The previous prime is 1013813. The next prime is 1013827. The reversal of 1013819 is 9183101.

It is a weak prime.

It is an emirp because it is prime and its reverse (9183101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1013819 - 2⁸ = 1013563 is a prime.

It is a super-2 number, since 2×1013819² = 2055657929522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1013794 and 1013803.

It is not a weakly prime, because it can be changed into another prime (1013813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506909 + 506910.

It is an arithmetic number, because the mean of its divisors is an integer number (506910).

2^1013819 is an apocalyptic number.

1013819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013819 is an equidigital number, since it uses as much as digits as its factorization.

1013819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1013819 is about 1006.8857929279. The cubic root of 1013819 is about 100.4585276439.

The spelling of 1013819 in words is "one million, thirteen thousand, eight hundred nineteen".