197158 has 8 divisors (see below), whose sum is σ = 318528. Its totient is φ = 90984.

The previous prime is 197147. The next prime is 197159. The reversal of 197158 is 851791.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3766 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (39816).

2¹⁹⁷¹⁵⁸ is an apocalyptic number.

197158 is a deficient number, since it is larger than the sum of its proper divisors (121370).

197158 is a wasteful number, since it uses less digits than its factorization.

197158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7598.

The product of its digits is 2520, while the sum is 31.

The square root of 197158 is about 444.0247740836. The cubic root of 197158 is about 58.2020302941.

The spelling of 197158 in words is "one hundred ninety-seven thousand, one hundred fifty-eight".