531040135 has 16 divisors (see below), whose sum is σ = 675870912. Its totient is φ = 399168000.

The previous prime is 531040121. The next prime is 531040151.

It is a happy number.

531040135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 531040135 - 2⁷ = 531040007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48685 + ... + 58585.

It is an arithmetic number, because the mean of its divisors is an integer number (42241932).

Almost surely, 2^531040135 is an apocalyptic number.

531040135 is a deficient number, since it is larger than the sum of its proper divisors (144830777).

531040135 is a wasteful number, since it uses less digits than its factorization.

531040135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 531040135 is about 23044.3080824745. The cubic root of 531040135 is about 809.7962882524.

The spelling of 531040135 in words is "five hundred thirty-one million, forty thousand, one hundred thirty-five".