12961177 has 2 divisors, whose sum is σ = 12961178. Its totient is φ = 12961176.

The previous prime is 12961163. The next prime is 12961181. The reversal of 12961177 is 77116921.

12961177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 259081 = 3564^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 12961177 - 2¹¹ = 12959129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12961147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6480588 + 6480589.

It is an arithmetic number, because the mean of its divisors is an integer number (6480589).

Almost surely, 2^12961177 is an apocalyptic number.

It is an amenable number.

12961177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12961177 is an equidigital number, since it uses as much as digits as its factorization.

12961177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 34.

The square root of 12961177 is about 3600.1634685108. The cubic root of 12961177 is about 234.8991690561.

The spelling of 12961177 in words is "twelve million, nine hundred sixty-one thousand, one hundred seventy-seven".