195674561 has 2 divisors, whose sum is σ = 195674562. Its totient is φ = 195674560.

The previous prime is 195674543. The next prime is 195674579. The reversal of 195674561 is 165476591.

It is a balanced prime because it is at equal distance from previous prime (195674543) and next prime (195674579).

It can be written as a sum of positive squares in only one way, i.e., 143256961 + 52417600 = 11969^2 + 7240^2 .

It is a cyclic number.

It is not a de Polignac number, because 195674561 - 2¹⁰ = 195673537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195674161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97837280 + 97837281.

It is an arithmetic number, because the mean of its divisors is an integer number (97837281).

Almost surely, 2^195674561 is an apocalyptic number.

It is an amenable number.

195674561 is a deficient number, since it is larger than the sum of its proper divisors (1).

195674561 is an equidigital number, since it uses as much as digits as its factorization.

195674561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 195674561 is about 13988.3723499198. The cubic root of 195674561 is about 580.5568977331.

The spelling of 195674561 in words is "one hundred ninety-five million, six hundred seventy-four thousand, five hundred sixty-one".