12532816 has 20 divisors (see below), whose sum is σ = 24682324. Its totient is φ = 6163200.

The previous prime is 12532783. The next prime is 12532829. The reversal of 12532816 is 61823521.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 9985600 = 1596^2 + 3160^2 .

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, 5445 + ... + 7396.

Almost surely, 2^12532816 is an apocalyptic number.

12532816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12532816 is a deficient number, since it is larger than the sum of its proper divisors (12149508).

12532816 is a wasteful number, since it uses less digits than its factorization.

12532816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12910 (or 12904 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 12532816 is about 3540.1717472462. The cubic root of 12532816 is about 232.2823553879.

The spelling of 12532816 in words is "twelve million, five hundred thirty-two thousand, eight hundred sixteen".