12606569 has 2 divisors, whose sum is σ = 12606570. Its totient is φ = 12606568.

The previous prime is 12606563. The next prime is 12606593. The reversal of 12606569 is 96560621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 5784025 = 2612^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 12606569 - 2⁸ = 12606313 is a prime.

It is a super-2 number, since 2×12606569² = 317851163903522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12606563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303284 + 6303285.

It is an arithmetic number, because the mean of its divisors is an integer number (6303285).

Almost surely, 2^12606569 is an apocalyptic number.

It is an amenable number.

12606569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606569 is an equidigital number, since it uses as much as digits as its factorization.

12606569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 12606569 is about 3550.5730523396. The cubic root of 12606569 is about 232.7371088622.

The spelling of 12606569 in words is "twelve million, six hundred six thousand, five hundred sixty-nine".