531135329 has 6 divisors (see below), whose sum is σ = 560561490. Its totient is φ = 503180496.

The previous prime is 531135289. The next prime is 531135347. The reversal of 531135329 is 923531135.

It can be written as a sum of positive squares in only one way, i.e., 515517025 + 15618304 = 22705^2 + 3952^2 .

It is not a de Polignac number, because 531135329 - 2¹² = 531131233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531135295 and 531135304.

It is not an unprimeable number, because it can be changed into a prime (531135229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 735284 + ... + 736005.

It is an arithmetic number, because the mean of its divisors is an integer number (93426915).

Almost surely, 2^531135329 is an apocalyptic number.

It is an amenable number.

531135329 is a deficient number, since it is larger than the sum of its proper divisors (29426161).

531135329 is a wasteful number, since it uses less digits than its factorization.

531135329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471327 (or 1471308 counting only the distinct ones).

The product of its digits is 12150, while the sum is 32.

The square root of 531135329 is about 23046.3734457289. The cubic root of 531135329 is about 809.8446732595.

The spelling of 531135329 in words is "five hundred thirty-one million, one hundred thirty-five thousand, three hundred twenty-nine".