531234539 has 4 divisors (see below), whose sum is σ = 579528600. Its totient is φ = 482940480.

The previous prime is 531234533. The next prime is 531234553. The reversal of 531234539 is 935432135.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 531234539 - 2²⁸ = 262799083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531234499 and 531234508.

It is not an unprimeable number, because it can be changed into a prime (531234533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24147014 + ... + 24147035.

It is an arithmetic number, because the mean of its divisors is an integer number (144882150).

Almost surely, 2^531234539 is an apocalyptic number.

531234539 is a deficient number, since it is larger than the sum of its proper divisors (48294061).

531234539 is a wasteful number, since it uses less digits than its factorization.

531234539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48294060.

The product of its digits is 48600, while the sum is 35.

The square root of 531234539 is about 23048.5257446111. The cubic root of 531234539 is about 809.8950933587.

The spelling of 531234539 in words is "five hundred thirty-one million, two hundred thirty-four thousand, five hundred thirty-nine".