12189953 has 2 divisors, whose sum is σ = 12189954. Its totient is φ = 12189952.

The previous prime is 12189949. The next prime is 12189959. The reversal of 12189953 is 35998121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9591409 + 2598544 = 3097^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 12189953 - 2² = 12189949 is a prime.

It is not a weakly prime, because it can be changed into another prime (12189959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094976 + 6094977.

It is an arithmetic number, because the mean of its divisors is an integer number (6094977).

Almost surely, 2^12189953 is an apocalyptic number.

It is an amenable number.

12189953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12189953 is an equidigital number, since it uses as much as digits as its factorization.

12189953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 12189953 is about 3491.4113192232. The cubic root of 12189953 is about 230.1445405263.

The spelling of 12189953 in words is "twelve million, one hundred eighty-nine thousand, nine hundred fifty-three".