197107249 has 2 divisors, whose sum is σ = 197107250. Its totient is φ = 197107248.

The previous prime is 197107223. The next prime is 197107277. The reversal of 197107249 is 942701791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195105024 + 2002225 = 13968^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 197107249 - 2¹¹ = 197105201 is a prime.

It is not a weakly prime, because it can be changed into another prime (197107219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98553624 + 98553625.

It is an arithmetic number, because the mean of its divisors is an integer number (98553625).

Almost surely, 2^197107249 is an apocalyptic number.

It is an amenable number.

197107249 is a deficient number, since it is larger than the sum of its proper divisors (1).

197107249 is an equidigital number, since it uses as much as digits as its factorization.

197107249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 197107249 is about 14039.4889151992. The cubic root of 197107249 is about 581.9703588231.

The spelling of 197107249 in words is "one hundred ninety-seven million, one hundred seven thousand, two hundred forty-nine".