197488117 has 2 divisors, whose sum is σ = 197488118. Its totient is φ = 197488116.

The previous prime is 197488111. The next prime is 197488127. The reversal of 197488117 is 711884791.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162843121 + 34644996 = 12761^2 + 5886^2 .

It is an emirp because it is prime and its reverse (711884791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197488117 - 2⁷ = 197487989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197488111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98744058 + 98744059.

It is an arithmetic number, because the mean of its divisors is an integer number (98744059).

Almost surely, 2^197488117 is an apocalyptic number.

It is an amenable number.

197488117 is a deficient number, since it is larger than the sum of its proper divisors (1).

197488117 is an equidigital number, since it uses as much as digits as its factorization.

197488117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 46.

The square root of 197488117 is about 14053.0465380287. The cubic root of 197488117 is about 582.3449624537.

The spelling of 197488117 in words is "one hundred ninety-seven million, four hundred eighty-eight thousand, one hundred seventeen".