197942167 has 2 divisors, whose sum is σ = 197942168. Its totient is φ = 197942166.

The previous prime is 197942149. The next prime is 197942191. The reversal of 197942167 is 761249791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197942167 - 2⁷ = 197942039 is a prime.

It is a super-2 number, since 2×197942167² = 78362202953311778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197942567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98971083 + 98971084.

It is an arithmetic number, because the mean of its divisors is an integer number (98971084).

Almost surely, 2^197942167 is an apocalyptic number.

197942167 is a deficient number, since it is larger than the sum of its proper divisors (1).

197942167 is an equidigital number, since it uses as much as digits as its factorization.

197942167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 197942167 is about 14069.1921232173. The cubic root of 197942167 is about 582.7909156120.

The spelling of 197942167 in words is "one hundred ninety-seven million, nine hundred forty-two thousand, one hundred sixty-seven".