197150717045 has 4 divisors (see below), whose sum is σ = 236580860460. Its totient is φ = 157720573632.

The previous prime is 197150717041. The next prime is 197150717047. The reversal of 197150717045 is 540717051791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66874477201 + 130276239844 = 258601^2 + 360938^2 .

It is a cyclic number.

It is not a de Polignac number, because 197150717045 - 2² = 197150717041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197150717041) 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, 19715071700 + ... + 19715071709.

It is an arithmetic number, because the mean of its divisors is an integer number (59145215115).

Almost surely, 2^197150717045 is an apocalyptic number.

It is an amenable number.

197150717045 is a deficient number, since it is larger than the sum of its proper divisors (39430143415).

197150717045 is an equidigital number, since it uses as much as digits as its factorization.

197150717045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39430143414.

The product of its (nonzero) digits is 308700, while the sum is 47.

The spelling of 197150717045 in words is "one hundred ninety-seven billion, one hundred fifty million, seven hundred seventeen thousand, forty-five".