1802219 has 2 divisors, whose sum is σ = 1802220. Its totient is φ = 1802218.

The previous prime is 1802197. The next prime is 1802231. The reversal of 1802219 is 9122081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1802219 - 2¹² = 1798123 is a prime.

It is a super-2 number, since 2×1802219² = 6495986647922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1802194 and 1802203.

It is not a weakly prime, because it can be changed into another prime (1802239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901109 + 901110.

It is an arithmetic number, because the mean of its divisors is an integer number (901110).

2^1802219 is an apocalyptic number.

1802219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802219 is an equidigital number, since it uses as much as digits as its factorization.

1802219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1802219 is about 1342.4675042622. The cubic root of 1802219 is about 121.6940060744.

The spelling of 1802219 in words is "one million, eight hundred two thousand, two hundred nineteen".