197288513 has 2 divisors, whose sum is σ = 197288514. Its totient is φ = 197288512.

The previous prime is 197288501. The next prime is 197288527. The reversal of 197288513 is 315882791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162384049 + 34904464 = 12743^2 + 5908^2 .

It is a cyclic number.

It is not a de Polignac number, because 197288513 - 2²⁰ = 196239937 is a prime.

It is not a weakly prime, because it can be changed into another prime (197288543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98644256 + 98644257.

It is an arithmetic number, because the mean of its divisors is an integer number (98644257).

Almost surely, 2^197288513 is an apocalyptic number.

It is an amenable number.

197288513 is a deficient number, since it is larger than the sum of its proper divisors (1).

197288513 is an equidigital number, since it uses as much as digits as its factorization.

197288513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 44.

The square root of 197288513 is about 14045.9429373752. The cubic root of 197288513 is about 582.1487015868.

The spelling of 197288513 in words is "one hundred ninety-seven million, two hundred eighty-eight thousand, five hundred thirteen".