2064081 has 4 divisors (see below), whose sum is σ = 2752112. Its totient is φ = 1376052.

The previous prime is 2064077. The next prime is 2064109. The reversal of 2064081 is 1804602.

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 not a de Polignac number, because 2064081 - 2² = 2064077 is a prime.

It is a super-2 number, since 2×2064081² = 8520860749122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064031) 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, 344011 + ... + 344016.

It is an arithmetic number, because the mean of its divisors is an integer number (688028).

2^2064081 is an apocalyptic number.

It is an amenable number.

2064081 is a deficient number, since it is larger than the sum of its proper divisors (688031).

2064081 is an equidigital number, since it uses as much as digits as its factorization.

2064081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688030.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2064081 is about 1436.6909897400. The cubic root of 2064081 is about 127.3236007351.

Adding to 2064081 its reverse (1804602), we get a palindrome (3868683).

The spelling of 2064081 in words is "two million, sixty-four thousand, eighty-one".