12195401 has 2 divisors, whose sum is σ = 12195402. Its totient is φ = 12195400.

The previous prime is 12195389. The next prime is 12195413. The reversal of 12195401 is 10459121.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (12195389) and next prime (12195413).

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 50176 = 3485^2 + 224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12195401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12195461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097700 + 6097701.

It is an arithmetic number, because the mean of its divisors is an integer number (6097701).

Almost surely, 2^12195401 is an apocalyptic number.

It is an amenable number.

12195401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195401 is an equidigital number, since it uses as much as digits as its factorization.

12195401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 12195401 is about 3492.1914323244. The cubic root of 12195401 is about 230.1788212358.

The spelling of 12195401 in words is "twelve million, one hundred ninety-five thousand, four hundred one".