197274249 has 6 divisors (see below), whose sum is σ = 284951706. Its totient is φ = 131516160.

The previous prime is 197274241. The next prime is 197274257. The reversal of 197274249 is 942472791.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (197274241) and next prime (197274257).

It can be written as a sum of positive squares in only one way, i.e., 117939600 + 79334649 = 10860^2 + 8907^2 .

It is not a de Polignac number, because 197274249 - 2³ = 197274241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197274241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10959672 + ... + 10959689.

It is an arithmetic number, because the mean of its divisors is an integer number (47491951).

Almost surely, 2^197274249 is an apocalyptic number.

It is an amenable number.

197274249 is a deficient number, since it is larger than the sum of its proper divisors (87677457).

197274249 is a wasteful number, since it uses less digits than its factorization.

197274249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21919367 (or 21919364 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 197274249 is about 14045.4351659178. The cubic root of 197274249 is about 582.1346714251.

It can be divided in two parts, 1972742 and 49, that added together give a palindrome (1972791).

The spelling of 197274249 in words is "one hundred ninety-seven million, two hundred seventy-four thousand, two hundred forty-nine".