12261677 has 2 divisors, whose sum is σ = 12261678. Its totient is φ = 12261676.

The previous prime is 12261659. The next prime is 12261701. The reversal of 12261677 is 77616221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10883401 + 1378276 = 3299^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 12261677 - 2¹⁴ = 12245293 is a prime.

It is a super-3 number, since 3×12261677³ (a number of 22 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12261617) 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 as a sum of consecutive naturals, namely, 6130838 + 6130839.

It is an arithmetic number, because the mean of its divisors is an integer number (6130839).

Almost surely, 2^12261677 is an apocalyptic number.

It is an amenable number.

12261677 is a deficient number, since it is larger than the sum of its proper divisors (1).

12261677 is an equidigital number, since it uses as much as digits as its factorization.

12261677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 12261677 is about 3501.6677455178. The cubic root of 12261677 is about 230.5950376882.

Adding to 12261677 its reverse (77616221), we get a palindrome (89877898).

The spelling of 12261677 in words is "twelve million, two hundred sixty-one thousand, six hundred seventy-seven".