2143156963 has 2 divisors, whose sum is σ = 2143156964. Its totient is φ = 2143156962.

The previous prime is 2143156949. The next prime is 2143156973. The reversal of 2143156963 is 3696513412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143156963 - 2⁹ = 2143156451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2143156913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071578481 + 1071578482.

It is an arithmetic number, because the mean of its divisors is an integer number (1071578482).

Almost surely, 2^2143156963 is an apocalyptic number.

2143156963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143156963 is an equidigital number, since it uses as much as digits as its factorization.

2143156963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 2143156963 is about 46294.2433030285. The cubic root of 2143156963 is about 1289.2921146749.

The spelling of 2143156963 in words is "two billion, one hundred forty-three million, one hundred fifty-six thousand, nine hundred sixty-three".