197345 has 8 divisors (see below), whose sum is σ = 245160. Its totient is φ = 152320.

The previous prime is 197341. The next prime is 197347. The reversal of 197345 is 543791.

197345 = T₁₉ + T₂₀ + ... + T₁₀₅.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 192721 = 68^2 + 439^2 .

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

It is not a de Polignac number, because 197345 - 2² = 197341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a d-powerful number, because it can be written as 1 + 9 + 3¹¹ + 7⁵ + 4⁴ + 5⁵ .

It is not an unprimeable number, because it can be changed into a prime (197341) 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 7 ways as a sum of consecutive naturals, for example, 536 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (30645).

2¹⁹⁷³⁴⁵ is an apocalyptic number.

It is an amenable number.

197345 is a deficient number, since it is larger than the sum of its proper divisors (47815).

197345 is a wasteful number, since it uses less digits than its factorization.

197345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395.

The product of its digits is 3780, while the sum is 29.

The square root of 197345 is about 444.2352980122. The cubic root of 197345 is about 58.2204255921.

The spelling of 197345 in words is "one hundred ninety-seven thousand, three hundred forty-five".