197457 has 16 divisors (see below), whose sum is σ = 291648. Its totient is φ = 118080.

The previous prime is 197453. The next prime is 197479. The reversal of 197457 is 754791.

It is not a de Polignac number, because 197457 - 2² = 197453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2338 + ... + 2420.

It is an arithmetic number, because the mean of its divisors is an integer number (18228).

2¹⁹⁷⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

197457 is a deficient number, since it is larger than the sum of its proper divisors (94191).

197457 is a wasteful number, since it uses less digits than its factorization.

197457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 8820, while the sum is 33.

The square root of 197457 is about 444.3613394525. The cubic root of 197457 is about 58.2314375331.

The spelling of 197457 in words is "one hundred ninety-seven thousand, four hundred fifty-seven".