12195553 has 2 divisors, whose sum is σ = 12195554. Its totient is φ = 12195552.

The previous prime is 12195529. The next prime is 12195559. The reversal of 12195553 is 35559121.

12195553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7772944 + 4422609 = 2788^2 + 2103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12195553 is a prime.

It is not a weakly prime, because it can be changed into another prime (12195559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097776 + 6097777.

It is an arithmetic number, because the mean of its divisors is an integer number (6097777).

Almost surely, 2^12195553 is an apocalyptic number.

It is an amenable number.

12195553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195553 is an equidigital number, since it uses as much as digits as its factorization.

12195553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6750, while the sum is 31.

The square root of 12195553 is about 3492.2131950956. The cubic root of 12195553 is about 230.1797775263.

The spelling of 12195553 in words is "twelve million, one hundred ninety-five thousand, five hundred fifty-three".