12161044 has 12 divisors (see below), whose sum is σ = 24322144. Its totient is φ = 5211864.

The previous prime is 12161041. The next prime is 12161047. The reversal of 12161044 is 44016121.

It is an interprime number because it is at equal distance from previous prime (12161041) and next prime (12161047).

12161044 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217134 + ... + 217189.

Almost surely, 2^12161044 is an apocalyptic number.

12161044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12161044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12161044 is a wasteful number, since it uses less digits than its factorization.

12161044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434334 (or 434332 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12161044 is about 3487.2688453860. The cubic root of 12161044 is about 229.9624639438.

Adding to 12161044 its reverse (44016121), we get a palindrome (56177165).

The spelling of 12161044 in words is "twelve million, one hundred sixty-one thousand, forty-four".