2981243 has 2 divisors, whose sum is σ = 2981244. Its totient is φ = 2981242.

The previous prime is 2981221. The next prime is 2981263. The reversal of 2981243 is 3421892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2981243 - 2⁶ = 2981179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2981263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490621 + 1490622.

It is an arithmetic number, because the mean of its divisors is an integer number (1490622).

2^2981243 is an apocalyptic number.

2981243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2981243 is an equidigital number, since it uses as much as digits as its factorization.

2981243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 2981243 is about 1726.6276379115. The cubic root of 2981243 is about 143.9237475664.

The spelling of 2981243 in words is "two million, nine hundred eighty-one thousand, two hundred forty-three".