195421009033 has 2 divisors, whose sum is σ = 195421009034. Its totient is φ = 195421009032.

The previous prime is 195421009019. The next prime is 195421009067. The reversal of 195421009033 is 330900124591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151124230009 + 44296779024 = 388747^2 + 210468^2 .

It is a cyclic number.

It is not a de Polignac number, because 195421009033 - 2⁵ = 195421009001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195421008983 and 195421009001.

It is not a weakly prime, because it can be changed into another prime (195421009013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97710504516 + 97710504517.

It is an arithmetic number, because the mean of its divisors is an integer number (97710504517).

Almost surely, 2^195421009033 is an apocalyptic number.

It is an amenable number.

195421009033 is a deficient number, since it is larger than the sum of its proper divisors (1).

195421009033 is an equidigital number, since it uses as much as digits as its factorization.

195421009033 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 195421009033 in words is "one hundred ninety-five billion, four hundred twenty-one million, nine thousand, thirty-three".