2081081 has 4 divisors (see below), whose sum is σ = 2110464. Its totient is φ = 2051700.

The previous prime is 2081047. The next prime is 2081099. The reversal of 2081081 is 1801802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2081081 - 2¹⁸ = 1818937 is a prime.

It is a super-2 number, since 2×2081081² = 8661796257122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14585 + ... + 14726.

It is an arithmetic number, because the mean of its divisors is an integer number (527616).

2^2081081 is an apocalyptic number.

It is an amenable number.

2081081 is a deficient number, since it is larger than the sum of its proper divisors (29383).

2081081 is an equidigital number, since it uses as much as digits as its factorization.

2081081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29382.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2081081 is about 1442.5952308253. The cubic root of 2081081 is about 127.6721958882.

Adding to 2081081 its reverse (1801802), we get a palindrome (3882883).

The spelling of 2081081 in words is "two million, eighty-one thousand, eighty-one".