195128033 has 8 divisors (see below), whose sum is σ = 199017000. Its totient is φ = 191246848.

The previous prime is 195128009. The next prime is 195128069. The reversal of 195128033 is 330821591.

195128033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 73753744 + 121374289 = 8588^2 + 11017^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195128033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195128333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99143 + ... + 101091.

It is an arithmetic number, because the mean of its divisors is an integer number (24877125).

Almost surely, 2^195128033 is an apocalyptic number.

It is an amenable number.

195128033 is a deficient number, since it is larger than the sum of its proper divisors (3888967).

195128033 is a wasteful number, since it uses less digits than its factorization.

195128033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 195128033 is about 13968.8236083072. The cubic root of 195128033 is about 580.0158864059.

The spelling of 195128033 in words is "one hundred ninety-five million, one hundred twenty-eight thousand, thirty-three".