2981543 has 2 divisors, whose sum is σ = 2981544. Its totient is φ = 2981542.

The previous prime is 2981533. The next prime is 2981551. The reversal of 2981543 is 3451892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2981543 - 2⁴ = 2981527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2981533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490771 + 1490772.

It is an arithmetic number, because the mean of its divisors is an integer number (1490772).

2^2981543 is an apocalyptic number.

2981543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981543 is an equidigital number, since it uses as much as digits as its factorization.

2981543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 2981543 is about 1726.7145102767. The cubic root of 2981543 is about 143.9285750467.

The spelling of 2981543 in words is "two million, nine hundred eighty-one thousand, five hundred forty-three".