197189007 has 8 divisors (see below), whose sum is σ = 263652480. Its totient is φ = 131092440.

The previous prime is 197188997. The next prime is 197189029. The reversal of 197189007 is 700981791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197189007 - 2⁷ = 197188879 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 197189007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197187007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90469 + ... + 92622.

It is an arithmetic number, because the mean of its divisors is an integer number (32956560).

Almost surely, 2^197189007 is an apocalyptic number.

197189007 is a deficient number, since it is larger than the sum of its proper divisors (66463473).

197189007 is a wasteful number, since it uses less digits than its factorization.

197189007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183453.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 197189007 is about 14042.4003290036. The cubic root of 197189007 is about 582.0508127480.

The spelling of 197189007 in words is "one hundred ninety-seven million, one hundred eighty-nine thousand, seven".