195609646 has 4 divisors (see below), whose sum is σ = 293414472. Its totient is φ = 97804822.

The previous prime is 195609619. The next prime is 195609653. The reversal of 195609646 is 646906591.

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

It is a junction number, because it is equal to n+sod(n) for n = 195609596 and 195609605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48902410 + ... + 48902413.

It is an arithmetic number, because the mean of its divisors is an integer number (73353618).

Almost surely, 2^195609646 is an apocalyptic number.

195609646 is a deficient number, since it is larger than the sum of its proper divisors (97804826).

195609646 is an equidigital number, since it uses as much as digits as its factorization.

195609646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97804825.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 195609646 is about 13986.0518374558. The cubic root of 195609646 is about 580.4926907506.

The spelling of 195609646 in words is "one hundred ninety-five million, six hundred nine thousand, six hundred forty-six".