12141861 has 16 divisors (see below), whose sum is σ = 17020800. Its totient is φ = 7684160.

The previous prime is 12141851. The next prime is 12141881. The reversal of 12141861 is 16814121.

It is a cyclic number.

It is not a de Polignac number, because 12141861 - 2⁶ = 12141797 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 (12141841) 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 15 ways as a sum of consecutive naturals, for example, 9691 + ... + 10871.

It is an arithmetic number, because the mean of its divisors is an integer number (1063800).

Almost surely, 2^12141861 is an apocalyptic number.

It is an amenable number.

12141861 is a deficient number, since it is larger than the sum of its proper divisors (4878939).

12141861 is a wasteful number, since it uses less digits than its factorization.

12141861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 384, while the sum is 24.

The square root of 12141861 is about 3484.5173266896. The cubic root of 12141861 is about 229.8414849801.

Adding to 12141861 its reverse (16814121), we get a palindrome (28955982).

The spelling of 12141861 in words is "twelve million, one hundred forty-one thousand, eight hundred sixty-one".