195319798 has 4 divisors (see below), whose sum is σ = 292979700. Its totient is φ = 97659898.

The previous prime is 195319741. The next prime is 195319799. The reversal of 195319798 is 897913591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195319799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48829948 + ... + 48829951.

It is an arithmetic number, because the mean of its divisors is an integer number (73244925).

Almost surely, 2^195319798 is an apocalyptic number.

195319798 is a deficient number, since it is larger than the sum of its proper divisors (97659902).

195319798 is an equidigital number, since it uses as much as digits as its factorization.

195319798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97659901.

The product of its digits is 612360, while the sum is 52.

The square root of 195319798 is about 13975.6859581203. The cubic root of 195319798 is about 580.2058306322.

The spelling of 195319798 in words is "one hundred ninety-five million, three hundred nineteen thousand, seven hundred ninety-eight".