195484591 has 8 divisors (see below), whose sum is σ = 197776368. Its totient is φ = 193200000.

The previous prime is 195484589. The next prime is 195484651.

It is a happy number.

195484591 is nontrivially palindromic in base 10.

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

It is a 7-Lehmer number, since φ(195484591) divides (195484591-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 195484591 - 2¹ = 195484589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195484561) 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, 68391 + ... + 71191.

It is an arithmetic number, because the mean of its divisors is an integer number (24722046).

Almost surely, 2^195484591 is an apocalyptic number.

195484591 is a deficient number, since it is larger than the sum of its proper divisors (2291777).

195484591 is a wasteful number, since it uses less digits than its factorization.

195484591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its digits is 259200, while the sum is 46.

The square root of 195484591 is about 13981.5804185364. The cubic root of 195484591 is about 580.3689596526.

The spelling of 195484591 in words is "one hundred ninety-five million, four hundred eighty-four thousand, five hundred ninety-one".