2133943 has 4 divisors (see below), whose sum is σ = 2438800. Its totient is φ = 1829088.

The previous prime is 2133899. The next prime is 2133949. The reversal of 2133943 is 3493312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2133943 - 2⁹ = 2133431 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 3⁸ + 3¹² + 9² + 4⁵ + 3¹³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133949) 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, 152418 + ... + 152431.

It is an arithmetic number, because the mean of its divisors is an integer number (609700).

2^2133943 is an apocalyptic number.

2133943 is a deficient number, since it is larger than the sum of its proper divisors (304857).

2133943 is an equidigital number, since it uses as much as digits as its factorization.

2133943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304856.

The product of its digits is 1944, while the sum is 25.

The square root of 2133943 is about 1460.8021768878. The cubic root of 2133943 is about 128.7441798356.

The spelling of 2133943 in words is "two million, one hundred thirty-three thousand, nine hundred forty-three".