197130738 has 32 divisors (see below), whose sum is σ = 474301440. Its totient is φ = 53358480.

The previous prime is 197130707. The next prime is 197130743. The reversal of 197130738 is 837031791.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 197130696 and 197130705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122718 + ... + 124313.

It is an arithmetic number, because the mean of its divisors is an integer number (14821920).

Almost surely, 2^197130738 is an apocalyptic number.

197130738 is an abundant number, since it is smaller than the sum of its proper divisors (277170702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197130738 is a wasteful number, since it uses less digits than its factorization.

197130738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247062.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 197130738 is about 14040.3254235790. The cubic root of 197130738 is about 581.9934754408.

The spelling of 197130738 in words is "one hundred ninety-seven million, one hundred thirty thousand, seven hundred thirty-eight".