197145250 has 32 divisors (see below), whose sum is σ = 379048176. Its totient is φ = 76723200.

The previous prime is 197145227. The next prime is 197145257. The reversal of 197145250 is 52541791.

It can be written as a sum of positive squares in 8 ways, for example, as 15515721 + 181629529 = 3939^2 + 13477^2 .

It is not an unprimeable number, because it can be changed into a prime (197145257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1407 + ... + 19906.

Almost surely, 2^197145250 is an apocalyptic number.

197145250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197145250 is a deficient number, since it is larger than the sum of its proper divisors (181902926).

197145250 is a wasteful number, since it uses less digits than its factorization.

197145250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21367 (or 21357 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 197145250 is about 14040.8422112066. The cubic root of 197145250 is about 582.0077564575.

It can be divided in two parts, 19714 and 5250, that added together give a square (24964 = 158²).

The spelling of 197145250 in words is "one hundred ninety-seven million, one hundred forty-five thousand, two hundred fifty".