12261141 has 6 divisors (see below), whose sum is σ = 17710550. Its totient is φ = 8174088.

The previous prime is 12261133. The next prime is 12261157. The reversal of 12261141 is 14116221.

12261141 is a `hidden beast` number, since 12 + 2 + 611 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11029041 + 1232100 = 3321^2 + 1110^2 .

It is not a de Polignac number, because 12261141 - 2³ = 12261133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 681166 + ... + 681183.

Almost surely, 2^12261141 is an apocalyptic number.

It is an amenable number.

12261141 is a deficient number, since it is larger than the sum of its proper divisors (5449409).

12261141 is a wasteful number, since it uses less digits than its factorization.

12261141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362355 (or 1362352 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 12261141 is about 3501.5912097217. The cubic root of 12261141 is about 230.5916776056.

Adding to 12261141 its reverse (14116221), we get a palindrome (26377362).

The spelling of 12261141 in words is "twelve million, two hundred sixty-one thousand, one hundred forty-one".