12554189 has 2 divisors, whose sum is σ = 12554190. Its totient is φ = 12554188.

The previous prime is 12554183. The next prime is 12554207. The reversal of 12554189 is 98145521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12369289 + 184900 = 3517^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 12554189 - 2⁴ = 12554173 is a prime.

It is a super-2 number, since 2×12554189² = 315215322895442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12554183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6277094 + 6277095.

It is an arithmetic number, because the mean of its divisors is an integer number (6277095).

Almost surely, 2^12554189 is an apocalyptic number.

It is an amenable number.

12554189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12554189 is an equidigital number, since it uses as much as digits as its factorization.

12554189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 35.

The square root of 12554189 is about 3543.1891002316. The cubic root of 12554189 is about 232.4143223063.

The spelling of 12554189 in words is "twelve million, five hundred fifty-four thousand, one hundred eighty-nine".