2133817 has 4 divisors (see below), whose sum is σ = 2438656. Its totient is φ = 1828980.

The previous prime is 2133811. The next prime is 2133821. The reversal of 2133817 is 7183312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2133817 - 2⁷ = 2133689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133791 and 2133800.

It is not an unprimeable number, because it can be changed into a prime (2133811) 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, 152409 + ... + 152422.

It is an arithmetic number, because the mean of its divisors is an integer number (609664).

2^2133817 is an apocalyptic number.

It is an amenable number.

2133817 is a deficient number, since it is larger than the sum of its proper divisors (304839).

2133817 is an equidigital number, since it uses as much as digits as its factorization.

2133817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304838.

The product of its digits is 1008, while the sum is 25.

The square root of 2133817 is about 1460.7590492617. The cubic root of 2133817 is about 128.7416458588.

The spelling of 2133817 in words is "two million, one hundred thirty-three thousand, eight hundred seventeen".