197142 has 32 divisors (see below), whose sum is σ = 449280. Its totient is φ = 57120.

The previous prime is 197137. The next prime is 197147. The reversal of 197142 is 241791.

It is an interprime number because it is at equal distance from previous prime (197137) and next prime (197147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197147) by changing a digit.

197142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (14040).

2¹⁹⁷¹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224640).

197142 is an abundant number, since it is smaller than the sum of its proper divisors (252138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197142 is a wasteful number, since it uses less digits than its factorization.

197142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148.

The product of its digits is 504, while the sum is 24.

The square root of 197142 is about 444.0067567053. The cubic root of 197142 is about 58.2004558248.

The spelling of 197142 in words is "one hundred ninety-seven thousand, one hundred forty-two".