197172194 has 8 divisors (see below), whose sum is σ = 295818588. Its totient is φ = 98566000.

The previous prime is 197172187. The next prime is 197172211. The reversal of 197172194 is 491271791.

197172194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 196981225 + 190969 = 14035^2 + 437^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11204 + ... + 22800.

Almost surely, 2^197172194 is an apocalyptic number.

197172194 is a deficient number, since it is larger than the sum of its proper divisors (98646394).

197172194 is a wasteful number, since it uses less digits than its factorization.

197172194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20100.

The product of its digits is 31752, while the sum is 41.

The square root of 197172194 is about 14041.8016650286. The cubic root of 197172194 is about 582.0342697392.

The spelling of 197172194 in words is "one hundred ninety-seven million, one hundred seventy-two thousand, one hundred ninety-four".