2051443 has 2 divisors, whose sum is σ = 2051444. Its totient is φ = 2051442.

The previous prime is 2051437. The next prime is 2051459. The reversal of 2051443 is 3441502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051443 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 0 + 5⁹ + 1 + 4 + 4⁸ + 3² .

It is a self number, because there is not a number n which added to its sum of digits gives 2051443.

It is not a weakly prime, because it can be changed into another prime (2051743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025721 + 1025722.

It is an arithmetic number, because the mean of its divisors is an integer number (1025722).

2^2051443 is an apocalyptic number.

2051443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051443 is an equidigital number, since it uses as much as digits as its factorization.

2051443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2051443 is about 1432.2859351400. The cubic root of 2051443 is about 127.0632086619.

Adding to 2051443 its reverse (3441502), we get a palindrome (5492945).

The spelling of 2051443 in words is "two million, fifty-one thousand, four hundred forty-three".