2181033 has 8 divisors (see below), whose sum is σ = 3231200. Its totient is φ = 1454004.

The previous prime is 2181031. The next prime is 2181071. The reversal of 2181033 is 3301812.

It is not a de Polignac number, because 2181033 - 2¹ = 2181031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2180997 and 2181015.

It is not an unprimeable number, because it can be changed into a prime (2181031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40363 + ... + 40416.

It is an arithmetic number, because the mean of its divisors is an integer number (403900).

2^2181033 is an apocalyptic number.

It is an amenable number.

2181033 is a deficient number, since it is larger than the sum of its proper divisors (1050167).

2181033 is an equidigital number, since it uses as much as digits as its factorization.

2181033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80788 (or 80782 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2181033 is about 1476.8320825334. The cubic root of 2181033 is about 129.6843030034.

Adding to 2181033 its reverse (3301812), we get a palindrome (5482845).

The spelling of 2181033 in words is "two million, one hundred eighty-one thousand, thirty-three".