197256017 has 6 divisors (see below), whose sum is σ = 229461138. Its totient is φ = 169076544.

The previous prime is 197256011. The next prime is 197256023. The reversal of 197256017 is 710652791.

197256017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197256011) and next prime (197256023).

It can be written as a sum of positive squares in only one way, i.e., 159997201 + 37258816 = 12649^2 + 6104^2 .

It is not a de Polignac number, because 197256017 - 2²⁰ = 196207441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197256011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2012768 + ... + 2012865.

It is an arithmetic number, because the mean of its divisors is an integer number (38243523).

Almost surely, 2^197256017 is an apocalyptic number.

It is an amenable number.

197256017 is a deficient number, since it is larger than the sum of its proper divisors (32205121).

197256017 is an equidigital number, since it uses as much as digits as its factorization.

197256017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025647 (or 4025640 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 197256017 is about 14044.7861144269. The cubic root of 197256017 is about 582.1167373285.

The spelling of 197256017 in words is "one hundred ninety-seven million, two hundred fifty-six thousand, seventeen".