2081135 has 16 divisors (see below), whose sum is σ = 2888256. Its totient is φ = 1410048.

The previous prime is 2081129. The next prime is 2081147. The reversal of 2081135 is 5311802.

It is a cyclic number.

It is not a de Polignac number, because 2081135 - 2¹⁶ = 2015599 is a prime.

It is a super-2 number, since 2×2081135² = 8662245776450, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3089 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (180516).

2^2081135 is an apocalyptic number.

2081135 is a deficient number, since it is larger than the sum of its proper divisors (807121).

2081135 is an equidigital number, since it uses as much as digits as its factorization.

2081135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2081135 is about 1442.6139469726. The cubic root of 2081135 is about 127.6733001603.

Adding to 2081135 its reverse (5311802), we get a palindrome (7392937).

The spelling of 2081135 in words is "two million, eighty-one thousand, one hundred thirty-five".