2081164 has 6 divisors (see below), whose sum is σ = 3642044. Its totient is φ = 1040580.

The previous prime is 2081161. The next prime is 2081171. The reversal of 2081164 is 4611802.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2081161) 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, 260142 + ... + 260149.

2^2081164 is an apocalyptic number.

It is an amenable number.

2081164 is a deficient number, since it is larger than the sum of its proper divisors (1560880).

2081164 is a wasteful number, since it uses less digits than its factorization.

2081164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520295 (or 520293 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2081164 is about 1442.6239981367. The cubic root of 2081164 is about 127.6738931874.

Adding to 2081164 its reverse (4611802), we get a palindrome (6692966).

The spelling of 2081164 in words is "two million, eighty-one thousand, one hundred sixty-four".