571972243 has 2 divisors, whose sum is σ = 571972244. Its totient is φ = 571972242.

The previous prime is 571972217. The next prime is 571972267. The reversal of 571972243 is 342279175.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 571972243 - 2²¹ = 569875091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 571972196 and 571972205.

It is not a weakly prime, because it can be changed into another prime (571972273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285986121 + 285986122.

It is an arithmetic number, because the mean of its divisors is an integer number (285986122).

Almost surely, 2^571972243 is an apocalyptic number.

571972243 is a deficient number, since it is larger than the sum of its proper divisors (1).

571972243 is an equidigital number, since it uses as much as digits as its factorization.

571972243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 571972243 is about 23915.9411899260. The cubic root of 571972243 is about 830.0896225863.

The spelling of 571972243 in words is "five hundred seventy-one million, nine hundred seventy-two thousand, two hundred forty-three".