2143089539 has 2 divisors, whose sum is σ = 2143089540. Its totient is φ = 2143089538.

The previous prime is 2143089523. The next prime is 2143089569. The reversal of 2143089539 is 9359803412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2143089539 - 2⁴ = 2143089523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143089539.

It is not a weakly prime, because it can be changed into another prime (2143089569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071544769 + 1071544770.

It is an arithmetic number, because the mean of its divisors is an integer number (1071544770).

Almost surely, 2^2143089539 is an apocalyptic number.

2143089539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143089539 is an equidigital number, since it uses as much as digits as its factorization.

2143089539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 2143089539 is about 46293.5150858087. The cubic root of 2143089539 is about 1289.2785940999.

The spelling of 2143089539 in words is "two billion, one hundred forty-three million, eighty-nine thousand, five hundred thirty-nine".