571242943 has 4 divisors (see below), whose sum is σ = 571456368. Its totient is φ = 571029520.

The previous prime is 571242941. The next prime is 571242953. The reversal of 571242943 is 349242175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 571242943 - 2¹ = 571242941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (571242941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102646 + ... + 108067.

It is an arithmetic number, because the mean of its divisors is an integer number (142864092).

Almost surely, 2^571242943 is an apocalyptic number.

571242943 is a deficient number, since it is larger than the sum of its proper divisors (213425).

571242943 is a wasteful number, since it uses less digits than its factorization.

571242943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213424.

The product of its digits is 60480, while the sum is 37.

The square root of 571242943 is about 23900.6891741640. The cubic root of 571242943 is about 829.7366673206.

The spelling of 571242943 in words is "five hundred seventy-one million, two hundred forty-two thousand, nine hundred forty-three".