197322481 has 2 divisors, whose sum is σ = 197322482. Its totient is φ = 197322480.

The previous prime is 197322473. The next prime is 197322511. The reversal of 197322481 is 184223791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196448256 + 874225 = 14016^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 197322481 - 2³ = 197322473 is a prime.

It is a super-2 number, since 2×197322481² = 77872323015990722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197322481.

It is not a weakly prime, because it can be changed into another prime (197302481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98661240 + 98661241.

It is an arithmetic number, because the mean of its divisors is an integer number (98661241).

Almost surely, 2^197322481 is an apocalyptic number.

It is an amenable number.

197322481 is a deficient number, since it is larger than the sum of its proper divisors (1).

197322481 is an equidigital number, since it uses as much as digits as its factorization.

197322481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 197322481 is about 14047.1520601152. The cubic root of 197322481 is about 582.1821100065.

The spelling of 197322481 in words is "one hundred ninety-seven million, three hundred twenty-two thousand, four hundred eighty-one".