195489471 has 8 divisors (see below), whose sum is σ = 261486640. Its totient is φ = 129909312.

The previous prime is 195489467. The next prime is 195489473. The reversal of 195489471 is 174984591.

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

It is not a de Polignac number, because 195489471 - 2² = 195489467 is a prime.

It is a super-3 number, since 3×195489471³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195489471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195489473) 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, 103156 + ... + 105033.

It is an arithmetic number, because the mean of its divisors is an integer number (32685830).

Almost surely, 2^195489471 is an apocalyptic number.

195489471 is a deficient number, since it is larger than the sum of its proper divisors (65997169).

195489471 is a wasteful number, since it uses less digits than its factorization.

195489471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208505.

The product of its digits is 362880, while the sum is 48.

The square root of 195489471 is about 13981.7549327686. The cubic root of 195489471 is about 580.3737889795.

The spelling of 195489471 in words is "one hundred ninety-five million, four hundred eighty-nine thousand, four hundred seventy-one".