197116001 has 2 divisors, whose sum is σ = 197116002. Its totient is φ = 197116000.

The previous prime is 197115973. The next prime is 197116019. The reversal of 197116001 is 100611791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169026001 + 28090000 = 13001^2 + 5300^2 .

It is a cyclic number.

It is not a de Polignac number, because 197116001 - 2¹⁰ = 197114977 is a prime.

It is not a weakly prime, because it can be changed into another prime (197116021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98558000 + 98558001.

It is an arithmetic number, because the mean of its divisors is an integer number (98558001).

Almost surely, 2^197116001 is an apocalyptic number.

It is an amenable number.

197116001 is a deficient number, since it is larger than the sum of its proper divisors (1).

197116001 is an equidigital number, since it uses as much as digits as its factorization.

197116001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 26.

The square root of 197116001 is about 14039.8006039972. The cubic root of 197116001 is about 581.9789722881.

Adding to 197116001 its reverse (100611791), we get a palindrome (297727792).

The spelling of 197116001 in words is "one hundred ninety-seven million, one hundred sixteen thousand, one".