532981 has 2 divisors, whose sum is σ = 532982. Its totient is φ = 532980.

The previous prime is 532951. The next prime is 532993. The reversal of 532981 is 189235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532900 + 81 = 730^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 532981 - 2⁵ = 532949 is a prime.

It is a super-2 number, since 2×532981² = 568137492722, which contains 22 as substring.

532981 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266490 + 266491.

It is an arithmetic number, because the mean of its divisors is an integer number (266491).

2⁵³²⁹⁸¹ is an apocalyptic number.

It is an amenable number.

532981 is a deficient number, since it is larger than the sum of its proper divisors (1).

532981 is an equidigital number, since it uses as much as digits as its factorization.

532981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 532981 is about 730.0554773440. The cubic root of 532981 is about 81.0781646529.

It can be divided in two parts, 5329 and 81, that multiplied together give a square (431649 = 657²).

The spelling of 532981 in words is "five hundred thirty-two thousand, nine hundred eighty-one".