197674481 has 2 divisors, whose sum is σ = 197674482. Its totient is φ = 197674480.

The previous prime is 197674447. The next prime is 197674493. The reversal of 197674481 is 184476791.

It is a happy number.

197674481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176890000 + 20784481 = 13300^2 + 4559^2 .

It is a cyclic number.

It is not a de Polignac number, because 197674481 - 2¹⁰ = 197673457 is a prime.

It is a super-2 number, since 2×197674481² = 78150400877238722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (197674681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98837240 + 98837241.

It is an arithmetic number, because the mean of its divisors is an integer number (98837241).

Almost surely, 2^197674481 is an apocalyptic number.

It is an amenable number.

197674481 is a deficient number, since it is larger than the sum of its proper divisors (1).

197674481 is an equidigital number, since it uses as much as digits as its factorization.

197674481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 197674481 is about 14059.6757074977. The cubic root of 197674481 is about 582.5280857353.

The spelling of 197674481 in words is "one hundred ninety-seven million, six hundred seventy-four thousand, four hundred eighty-one".