12102689 has 2 divisors, whose sum is σ = 12102690. Its totient is φ = 12102688.

The previous prime is 12102661. The next prime is 12102703. The reversal of 12102689 is 98620121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8952064 + 3150625 = 2992^2 + 1775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102689 is a prime.

It is a Chen prime.

It is equal to p₇₉₄₃₁₅ and since 12102689 and 794315 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 (12102289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051344 + 6051345.

It is an arithmetic number, because the mean of its divisors is an integer number (6051345).

Almost surely, 2^12102689 is an apocalyptic number.

It is an amenable number.

12102689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102689 is an equidigital number, since it uses as much as digits as its factorization.

12102689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12102689 is about 3478.8919212876. The cubic root of 12102689 is about 229.5940476165.

The spelling of 12102689 in words is "twelve million, one hundred two thousand, six hundred eighty-nine".