195844497 has 8 divisors (see below), whose sum is σ = 261253344. Its totient is φ = 130499328.

The previous prime is 195844459. The next prime is 195844499. The reversal of 195844497 is 794448591.

195844497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 195844497 - 2¹⁸ = 195582353 is a prime.

It is a super-4 number, since 4×195844497⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (195844499) 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, 8208 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (32656668).

Almost surely, 2^195844497 is an apocalyptic number.

It is an amenable number.

195844497 is a deficient number, since it is larger than the sum of its proper divisors (65408847).

195844497 is a wasteful number, since it uses less digits than its factorization.

195844497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31839.

The product of its digits is 1451520, while the sum is 51.

The square root of 195844497 is about 13994.4452194433. The cubic root of 195844497 is about 580.7249130509.

The spelling of 195844497 in words is "one hundred ninety-five million, eight hundred forty-four thousand, four hundred ninety-seven".