12085529 has 8 divisors (see below), whose sum is σ = 12436200. Its totient is φ = 11737600.

The previous prime is 12085523. The next prime is 12085531. The reversal of 12085529 is 92558021.

It can be written as a sum of positive squares in 4 ways, for example, as 2175625 + 9909904 = 1475^2 + 3148^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12085529 - 2¹⁶ = 12019993 is a prime.

It is a super-2 number, since 2×12085529² = 292120022419682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12085495 and 12085504.

It is not an unprimeable number, because it can be changed into a prime (12085523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10997 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (1554525).

Almost surely, 2^12085529 is an apocalyptic number.

It is an amenable number.

12085529 is a deficient number, since it is larger than the sum of its proper divisors (350671).

12085529 is a wasteful number, since it uses less digits than its factorization.

12085529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 12085529 is about 3476.4247439000. The cubic root of 12085529 is about 229.4854850379.

The spelling of 12085529 in words is "twelve million, eighty-five thousand, five hundred twenty-nine".