2201543 has 2 divisors, whose sum is σ = 2201544. Its totient is φ = 2201542.

The previous prime is 2201539. The next prime is 2201581. The reversal of 2201543 is 3451022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2201543 - 2² = 2201539 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100771 + 1100772.

It is an arithmetic number, because the mean of its divisors is an integer number (1100772).

2^2201543 is an apocalyptic number.

2201543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201543 is an equidigital number, since it uses as much as digits as its factorization.

2201543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2201543 is about 1483.7597514423. The cubic root of 2201543 is about 130.0895438308.

Adding to 2201543 its reverse (3451022), we get a palindrome (5652565).

It can be divided in two parts, 2201 and 543, that added together give a cube (2744 = 14³).

The spelling of 2201543 in words is "two million, two hundred one thousand, five hundred forty-three".