197360621 has 2 divisors, whose sum is σ = 197360622. Its totient is φ = 197360620.

The previous prime is 197360591. The next prime is 197360629. The reversal of 197360621 is 126063791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197262025 + 98596 = 14045^2 + 314^2 .

It is a cyclic number.

It is not a de Polignac number, because 197360621 - 2⁶ = 197360557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197360629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98680310 + 98680311.

It is an arithmetic number, because the mean of its divisors is an integer number (98680311).

Almost surely, 2^197360621 is an apocalyptic number.

It is an amenable number.

197360621 is a deficient number, since it is larger than the sum of its proper divisors (1).

197360621 is an equidigital number, since it uses as much as digits as its factorization.

197360621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 197360621 is about 14048.5095650749. The cubic root of 197360621 is about 582.2196171287.

The spelling of 197360621 in words is "one hundred ninety-seven million, three hundred sixty thousand, six hundred twenty-one".