12199087 has 2 divisors, whose sum is σ = 12199088. Its totient is φ = 12199086.

The previous prime is 12199073. The next prime is 12199093. The reversal of 12199087 is 78099121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12199087 - 2⁷ = 12198959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12199037) 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, 6099543 + 6099544.

It is an arithmetic number, because the mean of its divisors is an integer number (6099544).

Almost surely, 2^12199087 is an apocalyptic number.

12199087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199087 is an equidigital number, since it uses as much as digits as its factorization.

12199087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 12199087 is about 3492.7191412995. The cubic root of 12199087 is about 230.2020090389.

The spelling of 12199087 in words is "twelve million, one hundred ninety-nine thousand, eighty-seven".