2081719 has 2 divisors, whose sum is σ = 2081720. Its totient is φ = 2081718.

The previous prime is 2081687. The next prime is 2081749. The reversal of 2081719 is 9171802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2081719 - 2⁵ = 2081687 is a prime.

It is a super-2 number, since 2×2081719² = 8667107989922, which contains 22 as substring.

It is equal to p₁₅₄₅₅₈ and since 2081719 and 154558 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040859 + 1040860.

It is an arithmetic number, because the mean of its divisors is an integer number (1040860).

2^2081719 is an apocalyptic number.

2081719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081719 is an equidigital number, since it uses as much as digits as its factorization.

2081719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2081719 is about 1442.8163431290. The cubic root of 2081719 is about 127.6852414382.

The spelling of 2081719 in words is "two million, eighty-one thousand, seven hundred nineteen".