195028913 has 8 divisors (see below), whose sum is σ = 207658080. Its totient is φ = 182528320.

The previous prime is 195028909. The next prime is 195028927. The reversal of 195028913 is 319820591.

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

It is not a de Polignac number, because 195028913 - 2² = 195028909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195028013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29003 + ... + 35088.

It is an arithmetic number, because the mean of its divisors is an integer number (25957260).

Almost surely, 2^195028913 is an apocalyptic number.

It is an amenable number.

195028913 is a deficient number, since it is larger than the sum of its proper divisors (12629167).

195028913 is a wasteful number, since it uses less digits than its factorization.

195028913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64287.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 195028913 is about 13965.2752568648. The cubic root of 195028913 is about 579.9176587428.

The spelling of 195028913 in words is "one hundred ninety-five million, twenty-eight thousand, nine hundred thirteen".