195906043 has 2 divisors, whose sum is σ = 195906044. Its totient is φ = 195906042.

The previous prime is 195906023. The next prime is 195906089. The reversal of 195906043 is 340609591.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195906043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195905993 and 195906011.

It is not a weakly prime, because it can be changed into another prime (195906023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97953021 + 97953022.

It is an arithmetic number, because the mean of its divisors is an integer number (97953022).

Almost surely, 2^195906043 is an apocalyptic number.

195906043 is a deficient number, since it is larger than the sum of its proper divisors (1).

195906043 is an equidigital number, since it uses as much as digits as its factorization.

195906043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 195906043 is about 13996.6439906143. The cubic root of 195906043 is about 580.7857394594.

The spelling of 195906043 in words is "one hundred ninety-five million, nine hundred six thousand, forty-three".