531120005 has 16 divisors (see below), whose sum is σ = 689335920. Its totient is φ = 390517248.

The previous prime is 531119989. The next prime is 531120017. The reversal of 531120005 is 500021135.

It can be written as a sum of positive squares in 8 ways, for example, as 3912484 + 527207521 = 1978^2 + 22961^2 .

It is a cyclic number.

It is not a de Polignac number, because 531120005 - 2⁴ = 531119989 is a prime.

It is a super-2 number, since 2×531120005² = 564176919422400050, which contains 22 as substring.

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, 2390 + ... + 32679.

It is an arithmetic number, because the mean of its divisors is an integer number (43083495).

Almost surely, 2^531120005 is an apocalyptic number.

It is an amenable number.

531120005 is a deficient number, since it is larger than the sum of its proper divisors (158215915).

531120005 is a wasteful number, since it uses less digits than its factorization.

531120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35320.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 531120005 is about 23046.0409832144. The cubic root of 531120005 is about 809.8368847993.

The spelling of 531120005 in words is "five hundred thirty-one million, one hundred twenty thousand, five".