12161006 has 32 divisors (see below), whose sum is σ = 21694176. Its totient is φ = 5040000.

The previous prime is 12161003. The next prime is 12161011. The reversal of 12161006 is 60016121.

It is a happy number.

It is a Smith number, since the sum of its digits (17) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28676 + ... + 29096.

It is an arithmetic number, because the mean of its divisors is an integer number (677943).

Almost surely, 2^12161006 is an apocalyptic number.

12161006 is a deficient number, since it is larger than the sum of its proper divisors (9533170).

12161006 is a wasteful number, since it uses less digits than its factorization.

12161006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12161006 is about 3487.2633969920. The cubic root of 12161006 is about 229.9622244198.

Adding to 12161006 its reverse (60016121), we get a palindrome (72177127).

It can be divided in two parts, 1216 and 1006, that added together give a palindrome (2222).

The spelling of 12161006 in words is "twelve million, one hundred sixty-one thousand, six".