2143453139 has 2 divisors, whose sum is σ = 2143453140. Its totient is φ = 2143453138.

The previous prime is 2143453087. The next prime is 2143453159. The reversal of 2143453139 is 9313543412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143453139 - 2¹² = 2143449043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143453099 and 2143453108.

It is not a weakly prime, because it can be changed into another prime (2143453159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071726569 + 1071726570.

It is an arithmetic number, because the mean of its divisors is an integer number (1071726570).

Almost surely, 2^2143453139 is an apocalyptic number.

2143453139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143453139 is an equidigital number, since it uses as much as digits as its factorization.

2143453139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 2143453139 is about 46297.4420351708. The cubic root of 2143453139 is about 1289.3515036664.

The spelling of 2143453139 in words is "two billion, one hundred forty-three million, four hundred fifty-three thousand, one hundred thirty-nine".