2143319 has 2 divisors, whose sum is σ = 2143320. Its totient is φ = 2143318.

The previous prime is 2143313. The next prime is 2143331. The reversal of 2143319 is 9133412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143319 is a prime.

It is a super-2 number, since 2×2143319² = 9187632671522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143294 and 2143303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071659 + 1071660.

It is an arithmetic number, because the mean of its divisors is an integer number (1071660).

2^2143319 is an apocalyptic number.

2143319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143319 is an equidigital number, since it uses as much as digits as its factorization.

2143319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 2143319 is about 1464.0078551702. The cubic root of 2143319 is about 128.9324606892.

Subtracting from 2143319 its sum of digits (23), we obtain a square (2143296 = 1464²).

The spelling of 2143319 in words is "two million, one hundred forty-three thousand, three hundred nineteen".