2143503049 has 2 divisors, whose sum is σ = 2143503050. Its totient is φ = 2143503048.

The previous prime is 2143503023. The next prime is 2143503053. The reversal of 2143503049 is 9403053412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2036897424 + 106605625 = 45132^2 + 10325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143503049 - 2⁵ = 2143503017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143503049.

It is not a weakly prime, because it can be changed into another prime (2143503149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071751524 + 1071751525.

It is an arithmetic number, because the mean of its divisors is an integer number (1071751525).

Almost surely, 2^2143503049 is an apocalyptic number.

It is an amenable number.

2143503049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143503049 is an equidigital number, since it uses as much as digits as its factorization.

2143503049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2143503049 is about 46297.9810466936. The cubic root of 2143503049 is about 1289.3615110439.

The spelling of 2143503049 in words is "two billion, one hundred forty-three million, five hundred three thousand, forty-nine".