2081369 has 2 divisors, whose sum is σ = 2081370. Its totient is φ = 2081368.

The previous prime is 2081353. The next prime is 2081377. The reversal of 2081369 is 9631802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1408969 + 672400 = 1187^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081369 - 2⁴ = 2081353 is a prime.

It is a super-2 number, since 2×2081369² = 8664193828322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2081969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040684 + 1040685.

It is an arithmetic number, because the mean of its divisors is an integer number (1040685).

2^2081369 is an apocalyptic number.

It is an amenable number.

2081369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081369 is an equidigital number, since it uses as much as digits as its factorization.

2081369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2081369 is about 1442.6950474719. The cubic root of 2081369 is about 127.6780851186.

The spelling of 2081369 in words is "two million, eighty-one thousand, three hundred sixty-nine".