12107261 has 2 divisors, whose sum is σ = 12107262. Its totient is φ = 12107260.

The previous prime is 12107257. The next prime is 12107279. The reversal of 12107261 is 16270121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9114361 + 2992900 = 3019^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 12107261 - 2² = 12107257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12107201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6053630 + 6053631.

It is an arithmetic number, because the mean of its divisors is an integer number (6053631).

Almost surely, 2^12107261 is an apocalyptic number.

It is an amenable number.

12107261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12107261 is an equidigital number, since it uses as much as digits as its factorization.

12107261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12107261 is about 3479.5489650241. The cubic root of 12107261 is about 229.6229550169.

Adding to 12107261 its reverse (16270121), we get a palindrome (28377382).

The spelling of 12107261 in words is "twelve million, one hundred seven thousand, two hundred sixty-one".