195454897 has 16 divisors (see below), whose sum is σ = 224726400. Its totient is φ = 168256000.

The previous prime is 195454877. The next prime is 195454949. The reversal of 195454897 is 798454591.

It is not a de Polignac number, because 195454897 - 2¹¹ = 195452849 is a prime.

It is a super-2 number, since 2×195454897² = 76405233522561218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195454837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21729 + ... + 29377.

It is an arithmetic number, because the mean of its divisors is an integer number (14045400).

Almost surely, 2^195454897 is an apocalyptic number.

It is an amenable number.

195454897 is a deficient number, since it is larger than the sum of its proper divisors (29271503).

195454897 is a wasteful number, since it uses less digits than its factorization.

195454897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7784.

The product of its digits is 1814400, while the sum is 52.

The square root of 195454897 is about 13980.5184810865. The cubic root of 195454897 is about 580.3395722579.

It can be divided in two parts, 19545 and 4897, that added together give a palindrome (24442).

The spelling of 195454897 in words is "one hundred ninety-five million, four hundred fifty-four thousand, eight hundred ninety-seven".