2146693 has 2 divisors, whose sum is σ = 2146694. Its totient is φ = 2146692.

The previous prime is 2146691. The next prime is 2146723. The reversal of 2146693 is 3966412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2022084 + 124609 = 1422^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146693 - 2¹ = 2146691 is a prime.

Together with 2146691, it forms a pair of twin primes.

2146693 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073346 + 1073347.

It is an arithmetic number, because the mean of its divisors is an integer number (1073347).

2^2146693 is an apocalyptic number.

It is an amenable number.

2146693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146693 is an equidigital number, since it uses as much as digits as its factorization.

2146693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 2146693 is about 1465.1597182560. The cubic root of 2146693 is about 129.0000801233. Note that the first 4 decimals are identical.

The spelling of 2146693 in words is "two million, one hundred forty-six thousand, six hundred ninety-three".