2143445201 has 2 divisors, whose sum is σ = 2143445202. Its totient is φ = 2143445200.

The previous prime is 2143445189. The next prime is 2143445219. The reversal of 2143445201 is 1025443412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2039425600 + 104019601 = 45160^2 + 10199^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143445201 - 2⁶ = 2143445137 is a prime.

It is not a weakly prime, because it can be changed into another prime (2143445401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071722600 + 1071722601.

It is an arithmetic number, because the mean of its divisors is an integer number (1071722601).

Almost surely, 2^2143445201 is an apocalyptic number.

It is an amenable number.

2143445201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143445201 is an equidigital number, since it uses as much as digits as its factorization.

2143445201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2143445201 is about 46297.3563068130. The cubic root of 2143445201 is about 1289.3499120159.

Adding to 2143445201 its reverse (1025443412), we get a palindrome (3168888613).

The spelling of 2143445201 in words is "two billion, one hundred forty-three million, four hundred forty-five thousand, two hundred one".