572981 has 4 divisors (see below), whose sum is σ = 574764. Its totient is φ = 571200.

The previous prime is 572969. The next prime is 572993. The reversal of 572981 is 189275.

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

It is an interprime number because it is at equal distance from previous prime (572969) and next prime (572993).

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 538756 = 185^2 + 734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-572981 is a prime.

It is a super-2 number, since 2×572981² = 656614452722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 572981.

It is not an unprimeable number, because it can be changed into a prime (572941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (143691).

2⁵⁷²⁹⁸¹ is an apocalyptic number.

It is an amenable number.

572981 is a deficient number, since it is larger than the sum of its proper divisors (1783).

572981 is a wasteful number, since it uses less digits than its factorization.

572981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782.

The product of its digits is 5040, while the sum is 32.

The square root of 572981 is about 756.9550845328. The cubic root of 572981 is about 83.0577330945.

The spelling of 572981 in words is "five hundred seventy-two thousand, nine hundred eighty-one".