531497 has 2 divisors, whose sum is σ = 531498. Its totient is φ = 531496.

The previous prime is 531481. The next prime is 531521. The reversal of 531497 is 794135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440896 + 90601 = 664^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 531497 - 2⁴ = 531481 is a prime.

It is a super-2 number, since 2×531497² = 564978122018, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 5 + 3³ + 4² + 1 + 9⁶ + 7 .

It is a plaindrome in base 11.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (531457) 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, 265748 + 265749.

It is an arithmetic number, because the mean of its divisors is an integer number (265749).

531497 is a Friedman number, since it can be written as 57+(9*3)^4-1, using all its digits and the basic arithmetic operations.

2⁵³¹⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

531497 is a deficient number, since it is larger than the sum of its proper divisors (1).

531497 is an equidigital number, since it uses as much as digits as its factorization.

531497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 531497 is about 729.0384077674. The cubic root of 531497 is about 81.0028449948.

The spelling of 531497 in words is "five hundred thirty-one thousand, four hundred ninety-seven".