12088861 has 2 divisors, whose sum is σ = 12088862. Its totient is φ = 12088860.

The previous prime is 12088837. The next prime is 12088871. The reversal of 12088861 is 16888021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 47961 = 3470^2 + 219^2 .

It is a cyclic number.

It is not a de Polignac number, because 12088861 - 2⁷ = 12088733 is a prime.

It is a super-2 number, since 2×12088861² = 292281120554642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12088831) 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, 6044430 + 6044431.

It is an arithmetic number, because the mean of its divisors is an integer number (6044431).

Almost surely, 2^12088861 is an apocalyptic number.

It is an amenable number.

12088861 is a deficient number, since it is larger than the sum of its proper divisors (1).

12088861 is an equidigital number, since it uses as much as digits as its factorization.

12088861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 12088861 is about 3476.9039388513. The cubic root of 12088861 is about 229.5065729405.

The spelling of 12088861 in words is "twelve million, eighty-eight thousand, eight hundred sixty-one".