197189150 has 24 divisors (see below), whose sum is σ = 373697064. Its totient is φ = 77386400.

The previous prime is 197189141. The next prime is 197189219. The reversal of 197189150 is 51981791.

It is a junction number, because it is equal to n+sod(n) for n = 197189098 and 197189107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34556 + ... + 39855.

It is an arithmetic number, because the mean of its divisors is an integer number (15570711).

Almost surely, 2^197189150 is an apocalyptic number.

197189150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197189150 is a deficient number, since it is larger than the sum of its proper divisors (176507914).

197189150 is a wasteful number, since it uses less digits than its factorization.

197189150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74476 (or 74471 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 197189150 is about 14042.4054207248. The cubic root of 197189150 is about 582.0509534477.

The spelling of 197189150 in words is "one hundred ninety-seven million, one hundred eighty-nine thousand, one hundred fifty".