12961232 has 20 divisors (see below), whose sum is σ = 25697760. Its totient is φ = 6329568.

The previous prime is 12961187. The next prime is 12961243. The reversal of 12961232 is 23216921.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 8732 + ... + 10107.

It is an arithmetic number, because the mean of its divisors is an integer number (1284888).

Almost surely, 2^12961232 is an apocalyptic number.

It is an amenable number.

12961232 is a deficient number, since it is larger than the sum of its proper divisors (12736528).

12961232 is a wasteful number, since it uses less digits than its factorization.

12961232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18890 (or 18884 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 12961232 is about 3600.1711070448. The cubic root of 12961232 is about 234.8995013160.

The spelling of 12961232 in words is "twelve million, nine hundred sixty-one thousand, two hundred thirty-two".