2143465769 has 2 divisors, whose sum is σ = 2143465770. Its totient is φ = 2143465768.

The previous prime is 2143465673. The next prime is 2143465771. The reversal of 2143465769 is 9675643412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182465769 + 961000000 = 34387^2 + 31000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143465769 is a prime.

It is a super-2 number, since 2×2143465769² = 9188891005749522722, which contains 22 as substring.

Together with 2143465771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2143465799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071732884 + 1071732885.

It is an arithmetic number, because the mean of its divisors is an integer number (1071732885).

Almost surely, 2^2143465769 is an apocalyptic number.

It is an amenable number.

2143465769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143465769 is an equidigital number, since it uses as much as digits as its factorization.

2143465769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 2143465769 is about 46297.5784355942. The cubic root of 2143465769 is about 1289.3540361030.

The spelling of 2143465769 in words is "two billion, one hundred forty-three million, four hundred sixty-five thousand, seven hundred sixty-nine".