981473243 has 2 divisors, whose sum is σ = 981473244. Its totient is φ = 981473242.

The previous prime is 981473219. The next prime is 981473249. The reversal of 981473243 is 342374189.

981473243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981473243 - 2¹⁴ = 981456859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 981473243.

It is not a weakly prime, because it can be changed into another prime (981473249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490736621 + 490736622.

It is an arithmetic number, because the mean of its divisors is an integer number (490736622).

Almost surely, 2^981473243 is an apocalyptic number.

981473243 is a deficient number, since it is larger than the sum of its proper divisors (1).

981473243 is an equidigital number, since it uses as much as digits as its factorization.

981473243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 981473243 is about 31328.4733589111. The cubic root of 981473243 is about 993.7858790205.

The spelling of 981473243 in words is "nine hundred eighty-one million, four hundred seventy-three thousand, two hundred forty-three".