197549097 has 8 divisors (see below), whose sum is σ = 264298944. Its totient is φ = 131249328.

The previous prime is 197549017. The next prime is 197549101. The reversal of 197549097 is 790945791.

It is a happy number.

197549097 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 a de Polignac number, because none of the positive numbers 2^k-197549097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197549017) 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, 111493 + ... + 113250.

It is an arithmetic number, because the mean of its divisors is an integer number (33037368).

Almost surely, 2^197549097 is an apocalyptic number.

It is an amenable number.

197549097 is a deficient number, since it is larger than the sum of its proper divisors (66749847).

197549097 is a wasteful number, since it uses less digits than its factorization.

197549097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225039.

The product of its (nonzero) digits is 714420, while the sum is 51.

The square root of 197549097 is about 14055.2160068780. The cubic root of 197549097 is about 582.4048947371.

The spelling of 197549097 in words is "one hundred ninety-seven million, five hundred forty-nine thousand, ninety-seven".