2133669 has 4 divisors (see below), whose sum is σ = 2844896. Its totient is φ = 1422444.

The previous prime is 2133647. The next prime is 2133673. The reversal of 2133669 is 9663312.

It is a happy number.

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 not a de Polignac number, because 2133669 - 2⁷ = 2133541 is a prime.

It is a super-2 number, since 2×2133669² = 9105086803122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133689) 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, 355609 + ... + 355614.

It is an arithmetic number, because the mean of its divisors is an integer number (711224).

2^2133669 is an apocalyptic number.

It is an amenable number.

2133669 is a deficient number, since it is larger than the sum of its proper divisors (711227).

2133669 is an equidigital number, since it uses as much as digits as its factorization.

2133669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711226.

The product of its digits is 5832, while the sum is 30.

The square root of 2133669 is about 1460.7083897890. The cubic root of 2133669 is about 128.7386693142.

The spelling of 2133669 in words is "two million, one hundred thirty-three thousand, six hundred sixty-nine".