12195947 has 2 divisors, whose sum is σ = 12195948. Its totient is φ = 12195946.

The previous prime is 12195881. The next prime is 12195973. The reversal of 12195947 is 74959121.

12195947 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 is a cyclic number.

It is not a de Polignac number, because 12195947 - 2¹⁶ = 12130411 is a prime.

It is a super-2 number, since 2×12195947² = 297482246453618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12195947.

It is not a weakly prime, because it can be changed into another prime (12195847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097973 + 6097974.

It is an arithmetic number, because the mean of its divisors is an integer number (6097974).

Almost surely, 2^12195947 is an apocalyptic number.

12195947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12195947 is an equidigital number, since it uses as much as digits as its factorization.

12195947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 12195947 is about 3492.2696058581. The cubic root of 12195947 is about 230.1822562947.

The spelling of 12195947 in words is "twelve million, one hundred ninety-five thousand, nine hundred forty-seven".