2143013689 has 2 divisors, whose sum is σ = 2143013690. Its totient is φ = 2143013688.

The previous prime is 2143013681. The next prime is 2143013701. The reversal of 2143013689 is 9863103412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1324596025 + 818417664 = 36395^2 + 28608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143013689 - 2³ = 2143013681 is a prime.

It is not a weakly prime, because it can be changed into another prime (2143013681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071506844 + 1071506845.

It is an arithmetic number, because the mean of its divisors is an integer number (1071506845).

Almost surely, 2^2143013689 is an apocalyptic number.

It is an amenable number.

2143013689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143013689 is an equidigital number, since it uses as much as digits as its factorization.

2143013689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2143013689 is about 46292.6958493454. The cubic root of 2143013689 is about 1289.2633835152.

It can be divided in two parts, 214 and 3013689, that multiplied together give a palindrome (644929446).

The spelling of 2143013689 in words is "two billion, one hundred forty-three million, thirteen thousand, six hundred eighty-nine".