197959975 has 12 divisors (see below), whose sum is σ = 245784616. Its totient is φ = 158165280.

The previous prime is 197959973. The next prime is 197960029. The reversal of 197959975 is 579959791.

197959975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197959975 - 2¹ = 197959973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197959973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16684 + ... + 25966.

Almost surely, 2^197959975 is an apocalyptic number.

197959975 is a deficient number, since it is larger than the sum of its proper divisors (47824641).

197959975 is an equidigital number, since it uses as much as digits as its factorization.

197959975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146 (or 10141 counting only the distinct ones).

The product of its digits is 8037225, while the sum is 61.

The square root of 197959975 is about 14069.8249811432. The cubic root of 197959975 is about 582.8083921467.

The spelling of 197959975 in words is "one hundred ninety-seven million, nine hundred fifty-nine thousand, nine hundred seventy-five".