13085312 has 16 divisors (see below), whose sum is σ = 26068650. Its totient is φ = 6542592.

The previous prime is 13085311. The next prime is 13085333. The reversal of 13085312 is 21358031.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 2483776 = 3256^2 + 1576^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (13085311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50987 + ... + 51242.

Almost surely, 2^13085312 is an apocalyptic number.

It is an amenable number.

13085312 is a deficient number, since it is larger than the sum of its proper divisors (12983338).

13085312 is an equidigital number, since it uses as much as digits as its factorization.

13085312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102243 (or 102231 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13085312 is about 3617.3625751368. The cubic root of 13085312 is about 235.6466991675.

The spelling of 13085312 in words is "thirteen million, eighty-five thousand, three hundred twelve".