197103144961 has 4 divisors (see below), whose sum is σ = 197104098132. Its totient is φ = 197102191792.

The previous prime is 197103144949. The next prime is 197103144983. The reversal of 197103144961 is 169441301791.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 118649935936 + 78453209025 = 344456^2 + 280095^2 .

It is a cyclic number.

It is not a de Polignac number, because 197103144961 - 2⁹ = 197103144449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197103144941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21646 + ... + 628231.

It is an arithmetic number, because the mean of its divisors is an integer number (49276024533).

Almost surely, 2^197103144961 is an apocalyptic number.

It is an amenable number.

197103144961 is a deficient number, since it is larger than the sum of its proper divisors (953171).

197103144961 is an equidigital number, since it uses as much as digits as its factorization.

197103144961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953170.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 197103144961 in words is "one hundred ninety-seven billion, one hundred three million, one hundred forty-four thousand, nine hundred sixty-one".