12481181 has 2 divisors, whose sum is σ = 12481182. Its totient is φ = 12481180.

The previous prime is 12481169. The next prime is 12481193. The reversal of 12481181 is 18118421.

It is a balanced prime because it is at equal distance from previous prime (12481169) and next prime (12481193).

It can be written as a sum of positive squares in only one way, i.e., 12313081 + 168100 = 3509^2 + 410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12481181 is a prime.

It is a super-2 number, since 2×12481181² = 311559758309522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12481181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12981181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6240590 + 6240591.

It is an arithmetic number, because the mean of its divisors is an integer number (6240591).

Almost surely, 2^12481181 is an apocalyptic number.

It is an amenable number.

12481181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12481181 is an equidigital number, since it uses as much as digits as its factorization.

12481181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 26.

The square root of 12481181 is about 3532.8714949740. The cubic root of 12481181 is about 231.9629164370.

The spelling of 12481181 in words is "twelve million, four hundred eighty-one thousand, one hundred eighty-one".