2031133 has 4 divisors (see below), whose sum is σ = 2187388. Its totient is φ = 1874880.

The previous prime is 2031121. The next prime is 2031137. The reversal of 2031133 is 3311302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 1951609 = 282^2 + 1397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 156241 = 2031133 / (2 + 0 + 3 + 1 + 1 + 3 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031137) 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, 78108 + ... + 78133.

It is an arithmetic number, because the mean of its divisors is an integer number (546847).

2^2031133 is an apocalyptic number.

It is an amenable number.

2031133 is a deficient number, since it is larger than the sum of its proper divisors (156255).

2031133 is a wasteful number, since it uses less digits than its factorization.

2031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156254.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 2031133 is about 1425.1782344675. The cubic root of 2031133 is about 126.6424938483.

Subtracting from 2031133 its sum of digits (13), we obtain a triangular number (2031120 = T₂₀₁₅).

Adding to 2031133 its reverse (3311302), we get a palindrome (5342435).

The spelling of 2031133 in words is "two million, thirty-one thousand, one hundred thirty-three".