197428260241 has 27 divisors (see below), whose sum is σ = 213822403291. Its totient is φ = 182253091904.

The previous prime is 197428260229. The next prime is 197428260319. The reversal of 197428260241 is 142062824791.

The square root of 197428260241 is 444329.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 153707123025 + 43721137216 = 392055^2 + 209096^2 .

It is not a de Polignac number, because 197428260241 - 2⁵ = 197428260209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197428260191 and 197428260200.

It is not an unprimeable number, because it can be changed into a prime (197428260541) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 445661766 + ... + 445662208.

Almost surely, 2^197428260241 is an apocalyptic number.

197428260241 is the 444329-th square number.

197428260241 is the 222165-th centered octagonal number.

It is an amenable number.

197428260241 is a deficient number, since it is larger than the sum of its proper divisors (16394143050).

197428260241 is an frugal number, since it uses more digits than its factorization.

197428260241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 197428260241 in words is "one hundred ninety-seven billion, four hundred twenty-eight million, two hundred sixty thousand, two hundred forty-one".