12611089 has 2 divisors, whose sum is σ = 12611090. Its totient is φ = 12611088.

The previous prime is 12611069. The next prime is 12611101. The reversal of 12611089 is 98011621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 1166400 = 3383^2 + 1080^2 .

It is an emirp because it is prime and its reverse (98011621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12611089 - 2⁵ = 12611057 is a prime.

It is equal to p₈₂₅₅₀₈ and since 12611089 and 825508 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12611029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6305544 + 6305545.

It is an arithmetic number, because the mean of its divisors is an integer number (6305545).

Almost surely, 2^12611089 is an apocalyptic number.

It is an amenable number.

12611089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12611089 is an equidigital number, since it uses as much as digits as its factorization.

12611089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 12611089 is about 3551.2095122648. The cubic root of 12611089 is about 232.7649209769.

The spelling of 12611089 in words is "twelve million, six hundred eleven thousand, eighty-nine".