12831536 has 20 divisors (see below), whose sum is σ = 26170200. Its totient is φ = 6077952.

The previous prime is 12831529. The next prime is 12831541. The reversal of 12831536 is 63513821.

It is a super-2 number, since 2×12831536² = 329296632238592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12831499 and 12831508.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20801 + ... + 21408.

It is an arithmetic number, because the mean of its divisors is an integer number (1308510).

Almost surely, 2^12831536 is an apocalyptic number.

12831536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12831536 is an abundant number, since it is smaller than the sum of its proper divisors (13338664).

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

12831536 is a wasteful number, since it uses less digits than its factorization.

12831536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42236 (or 42230 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 12831536 is about 3582.1133427071. The cubic root of 12831536 is about 234.1133694694.

The spelling of 12831536 in words is "twelve million, eight hundred thirty-one thousand, five hundred thirty-six".