531731106 has 24 divisors (see below), whose sum is σ = 1152725340. Its totient is φ = 177145056.

The previous prime is 531731087. The next prime is 531731111. The reversal of 531731106 is 601137135.

It can be written as a sum of positive squares in 2 ways, for example, as 526014225 + 5716881 = 22935^2 + 2391^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 531731106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29760 + ... + 44148.

Almost surely, 2^531731106 is an apocalyptic number.

531731106 is an abundant number, since it is smaller than the sum of its proper divisors (620994234).

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

531731106 is a wasteful number, since it uses less digits than its factorization.

531731106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16447 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 531731106 is about 23059.2954358974. The cubic root of 531731106 is about 810.1473623064.

The spelling of 531731106 in words is "five hundred thirty-one million, seven hundred thirty-one thousand, one hundred six".