12061161 has 12 divisors (see below), whose sum is σ = 19910592. Its totient is φ = 6892056.

The previous prime is 12061151. The next prime is 12061171. The reversal of 12061161 is 16116021.

It is an interprime number because it is at equal distance from previous prime (12061151) and next prime (12061171).

It is not a de Polignac number, because 12061161 - 2⁷ = 12061033 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12061111) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 95661 + ... + 95786.

It is an arithmetic number, because the mean of its divisors is an integer number (1659216).

Almost surely, 2^12061161 is an apocalyptic number.

It is an amenable number.

12061161 is a deficient number, since it is larger than the sum of its proper divisors (7849431).

12061161 is a wasteful number, since it uses less digits than its factorization.

12061161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191460 (or 191457 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12061161 is about 3472.9182253546. The cubic root of 12061161 is about 229.3311443946.

Adding to 12061161 its reverse (16116021), we get a palindrome (28177182).

The spelling of 12061161 in words is "twelve million, sixty-one thousand, one hundred sixty-one".