2133689 has 2 divisors, whose sum is σ = 2133690. Its totient is φ = 2133688.

The previous prime is 2133683. The next prime is 2133697. The reversal of 2133689 is 9863312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1849600 + 284089 = 1360^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133689 - 2⁴ = 2133673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2133683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066844 + 1066845.

It is an arithmetic number, because the mean of its divisors is an integer number (1066845).

2^2133689 is an apocalyptic number.

It is an amenable number.

2133689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133689 is an equidigital number, since it uses as much as digits as its factorization.

2133689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 2133689 is about 1460.7152357664. The cubic root of 2133689 is about 128.7390715580.

The spelling of 2133689 in words is "two million, one hundred thirty-three thousand, six hundred eighty-nine".