197231075 has 12 divisors (see below), whose sum is σ = 244773768. Its totient is φ = 157651200.

The previous prime is 197231071. The next prime is 197231101. The reversal of 197231075 is 570132791.

It is a happy number.

It is not a de Polignac number, because 197231075 - 2² = 197231071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197231071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35699 + ... + 40851.

It is an arithmetic number, because the mean of its divisors is an integer number (20397814).

Almost surely, 2^197231075 is an apocalyptic number.

197231075 is a deficient number, since it is larger than the sum of its proper divisors (47542693).

197231075 is a wasteful number, since it uses less digits than its factorization.

197231075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694 (or 6689 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 197231075 is about 14043.8981411857. The cubic root of 197231075 is about 582.0922010805.

The spelling of 197231075 in words is "one hundred ninety-seven million, two hundred thirty-one thousand, seventy-five".