12161296 has 40 divisors (see below), whose sum is σ = 28105344. Its totient is φ = 4984320.

The previous prime is 12161293. The next prime is 12161321. The reversal of 12161296 is 69216121.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

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

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12161291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216 + ... + 4936.

Almost surely, 2^12161296 is an apocalyptic number.

12161296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12161296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14052672).

12161296 is an abundant number, since it is smaller than the sum of its proper divisors (15944048).

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

12161296 is a wasteful number, since it uses less digits than its factorization.

12161296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759 (or 4753 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 12161296 is about 3487.3049766259. The cubic root of 12161296 is about 229.9640523529.

The spelling of 12161296 in words is "twelve million, one hundred sixty-one thousand, two hundred ninety-six".