1812033 has 6 divisors (see below), whose sum is σ = 2617394. Its totient is φ = 1208016.

The previous prime is 1811993. The next prime is 1812037. The reversal of 1812033 is 3302181.

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 400689 = 1188^2 + 633^2 .

It is not a de Polignac number, because 1812033 - 2¹⁴ = 1795649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1811997 and 1812015.

It is not an unprimeable number, because it can be changed into a prime (1812037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100660 + ... + 100677.

2^1812033 is an apocalyptic number.

It is an amenable number.

1812033 is a deficient number, since it is larger than the sum of its proper divisors (805361).

1812033 is a wasteful number, since it uses less digits than its factorization.

1812033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201343 (or 201340 counting only the distinct ones).

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

The square root of 1812033 is about 1346.1177511644. The cubic root of 1812033 is about 121.9145015940.

The spelling of 1812033 in words is "one million, eight hundred twelve thousand, thirty-three".