537281 has 2 divisors, whose sum is σ = 537282. Its totient is φ = 537280.

The previous prime is 537269. The next prime is 537287. The reversal of 537281 is 182735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 152881 = 620^2 + 391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-537281 is a prime.

It is a super-2 number, since 2×537281² = 577341745922, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 537281.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 537281.

It is not a weakly prime, because it can be changed into another prime (537287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268640 + 268641.

It is an arithmetic number, because the mean of its divisors is an integer number (268641).

2⁵³⁷²⁸¹ is an apocalyptic number.

It is an amenable number.

537281 is a deficient number, since it is larger than the sum of its proper divisors (1).

537281 is an equidigital number, since it uses as much as digits as its factorization.

537281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 537281 is about 732.9945429538. The cubic root of 537281 is about 81.2956225040.

It can be divided in two parts, 537 and 281, that added together give a palindrome (818).

The spelling of 537281 in words is "five hundred thirty-seven thousand, two hundred eighty-one".