1668119 has 2 divisors, whose sum is σ = 1668120. Its totient is φ = 1668118.

The previous prime is 1668113. The next prime is 1668131. The reversal of 1668119 is 9118661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1668119 - 2⁸ = 1667863 is a prime.

It is a super-2 number, since 2×1668119² = 5565241996322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1668113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 834059 + 834060.

It is an arithmetic number, because the mean of its divisors is an integer number (834060).

2^1668119 is an apocalyptic number.

1668119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1668119 is an equidigital number, since it uses as much as digits as its factorization.

1668119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 32.

The square root of 1668119 is about 1291.5568125328. The cubic root of 1668119 is about 118.5975387826.

The spelling of 1668119 in words is "one million, six hundred sixty-eight thousand, one hundred nineteen".