531707136 has 36 divisors (see below), whose sum is σ = 1415118432. Its totient is φ = 177235456.

The previous prime is 531707117. The next prime is 531707173. The reversal of 531707136 is 631707135.

It is a junction number, because it is equal to n+sod(n) for n = 531707097 and 531707106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345396 + ... + 346931.

Almost surely, 2^531707136 is an apocalyptic number.

It is an amenable number.

531707136 is an abundant number, since it is smaller than the sum of its proper divisors (883411296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531707136 is an equidigital number, since it uses as much as digits as its factorization.

531707136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692346 (or 692332 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 531707136 is about 23058.7756830236. The cubic root of 531707136 is about 810.1351885317.

Subtracting 531707136 from its reverse (631707135), we obtain a palindrome (99999999).

It can be divided in two parts, 53170 and 7136, that added together give a palindrome (60306).

The spelling of 531707136 in words is "five hundred thirty-one million, seven hundred seven thousand, one hundred thirty-six".