197974141 has 2 divisors, whose sum is σ = 197974142. Its totient is φ = 197974140.

The previous prime is 197974111. The next prime is 197974171. The reversal of 197974141 is 141479791.

It is a balanced prime because it is at equal distance from previous prime (197974111) and next prime (197974171).

It can be written as a sum of positive squares in only one way, i.e., 195860025 + 2114116 = 13995^2 + 1454^2 .

It is an emirp because it is prime and its reverse (141479791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197974141 - 2⁵ = 197974109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197974111) 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, 98987070 + 98987071.

It is an arithmetic number, because the mean of its divisors is an integer number (98987071).

Almost surely, 2^197974141 is an apocalyptic number.

It is an amenable number.

197974141 is a deficient number, since it is larger than the sum of its proper divisors (1).

197974141 is an equidigital number, since it uses as much as digits as its factorization.

197974141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 43.

The square root of 197974141 is about 14070.3283899133. The cubic root of 197974141 is about 582.8222937224.

The spelling of 197974141 in words is "one hundred ninety-seven million, nine hundred seventy-four thousand, one hundred forty-one".