195944011 has 2 divisors, whose sum is σ = 195944012. Its totient is φ = 195944010.

The previous prime is 195943997. The next prime is 195944029. The reversal of 195944011 is 110449591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195944011 - 2⁹ = 195943499 is a prime.

It is not a weakly prime, because it can be changed into another prime (195944311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97972005 + 97972006.

It is an arithmetic number, because the mean of its divisors is an integer number (97972006).

Almost surely, 2^195944011 is an apocalyptic number.

195944011 is a deficient number, since it is larger than the sum of its proper divisors (1).

195944011 is an equidigital number, since it uses as much as digits as its factorization.

195944011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 195944011 is about 13998.0002500357. Note that the first 3 decimals coincide. The cubic root of 195944011 is about 580.8232571867.

The spelling of 195944011 in words is "one hundred ninety-five million, nine hundred forty-four thousand, eleven".