196497481 has 2 divisors, whose sum is σ = 196497482. Its totient is φ = 196497480.

The previous prime is 196497473. The next prime is 196497517. The reversal of 196497481 is 184794691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182925625 + 13571856 = 13525^2 + 3684^2 .

It is an emirp because it is prime and its reverse (184794691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196497481 - 2³ = 196497473 is a prime.

It is a super-2 number, since 2×196497481² = 77222520078690722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (196497421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98248740 + 98248741.

It is an arithmetic number, because the mean of its divisors is an integer number (98248741).

Almost surely, 2^196497481 is an apocalyptic number.

It is an amenable number.

196497481 is a deficient number, since it is larger than the sum of its proper divisors (1).

196497481 is an equidigital number, since it uses as much as digits as its factorization.

196497481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 196497481 is about 14017.7559188338. The cubic root of 196497481 is about 581.3696140158.

The spelling of 196497481 in words is "one hundred ninety-six million, four hundred ninety-seven thousand, four hundred eighty-one".