12195973 has 2 divisors, whose sum is σ = 12195974. Its totient is φ = 12195972.

The previous prime is 12195947. The next prime is 12195991. The reversal of 12195973 is 37959121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10903204 + 1292769 = 3302^2 + 1137^2 .

It is a cyclic number.

It is not a de Polignac number, because 12195973 - 2⁹ = 12195461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12195373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097986 + 6097987.

It is an arithmetic number, because the mean of its divisors is an integer number (6097987).

Almost surely, 2^12195973 is an apocalyptic number.

It is an amenable number.

12195973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195973 is an equidigital number, since it uses as much as digits as its factorization.

12195973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 37.

The square root of 12195973 is about 3492.2733283636. The cubic root of 12195973 is about 230.1824198664.

The spelling of 12195973 in words is "twelve million, one hundred ninety-five thousand, nine hundred seventy-three".