2143340539 has 2 divisors, whose sum is σ = 2143340540. Its totient is φ = 2143340538.

The previous prime is 2143340533. The next prime is 2143340579. The reversal of 2143340539 is 9350433412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2143340539 - 2³ = 2143340531 is a prime.

It is a super-2 number, since 2×2143340539² = 9187817332241621042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2143340531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071670269 + 1071670270.

It is an arithmetic number, because the mean of its divisors is an integer number (1071670270).

Almost surely, 2^2143340539 is an apocalyptic number.

2143340539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143340539 is an equidigital number, since it uses as much as digits as its factorization.

2143340539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 2143340539 is about 46296.2259692947. The cubic root of 2143340539 is about 1289.3289258427.

The spelling of 2143340539 in words is "two billion, one hundred forty-three million, three hundred forty thousand, five hundred thirty-nine".