2143369 has 2 divisors, whose sum is σ = 2143370. Its totient is φ = 2143368.

The previous prime is 2143331. The next prime is 2143381. The reversal of 2143369 is 9633412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 78400 = 1437^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143369 - 2⁹ = 2142857 is a prime.

It is a super-2 number, since 2×2143369² = 9188061340322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2143319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071684 + 1071685.

It is an arithmetic number, because the mean of its divisors is an integer number (1071685).

2^2143369 is an apocalyptic number.

It is an amenable number.

2143369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143369 is an equidigital number, since it uses as much as digits as its factorization.

2143369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 2143369 is about 1464.0249314817. The cubic root of 2143369 is about 128.9334632733.

The spelling of 2143369 in words is "two million, one hundred forty-three thousand, three hundred sixty-nine".