2143201 has 2 divisors, whose sum is σ = 2143202. Its totient is φ = 2143200.

The previous prime is 2143199. The next prime is 2143217. The reversal of 2143201 is 1023412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1437601 + 705600 = 1199^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143201 - 2¹ = 2143199 is a prime.

Together with 2143199, it forms a pair of twin primes.

2143201 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2143231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071600 + 1071601.

It is an arithmetic number, because the mean of its divisors is an integer number (1071601).

2^2143201 is an apocalyptic number.

It is an amenable number.

2143201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143201 is an equidigital number, since it uses as much as digits as its factorization.

2143201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2143201 is about 1463.9675542853. The cubic root of 2143201 is about 128.9300945288.

Adding to 2143201 its reverse (1023412), we get a palindrome (3166613).

The spelling of 2143201 in words is "two million, one hundred forty-three thousand, two hundred one".