197243249 has 8 divisors (see below), whose sum is σ = 227610240. Its totient is φ = 167423616.

The previous prime is 197243227. The next prime is 197243269. The reversal of 197243249 is 942342791.

197243249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 197243249 - 2¹² = 197239153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197243219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136064 + ... + 137505.

It is an arithmetic number, because the mean of its divisors is an integer number (28451280).

Almost surely, 2^197243249 is an apocalyptic number.

It is an amenable number.

197243249 is a deficient number, since it is larger than the sum of its proper divisors (30366991).

197243249 is a wasteful number, since it uses less digits than its factorization.

197243249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273679.

The product of its digits is 108864, while the sum is 41.

The square root of 197243249 is about 14044.3315611673. The cubic root of 197243249 is about 582.1041772945.

The spelling of 197243249 in words is "one hundred ninety-seven million, two hundred forty-three thousand, two hundred forty-nine".