195974641 has 2 divisors, whose sum is σ = 195974642. Its totient is φ = 195974640.

The previous prime is 195974627. The next prime is 195974659. The reversal of 195974641 is 146479591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193071025 + 2903616 = 13895^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 195974641 - 2⁵ = 195974609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195974591 and 195974600.

It is not a weakly prime, because it can be changed into another prime (195974041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97987320 + 97987321.

It is an arithmetic number, because the mean of its divisors is an integer number (97987321).

Almost surely, 2^195974641 is an apocalyptic number.

It is an amenable number.

195974641 is a deficient number, since it is larger than the sum of its proper divisors (1).

195974641 is an equidigital number, since it uses as much as digits as its factorization.

195974641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 195974641 is about 13999.0942921319. The cubic root of 195974641 is about 580.8535204056.

The spelling of 195974641 in words is "one hundred ninety-five million, nine hundred seventy-four thousand, six hundred forty-one".