144197 has 4 divisors (see below), whose sum is σ = 147756. Its totient is φ = 140640.

The previous prime is 144173. The next prime is 144203. The reversal of 144197 is 791441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791441 = 7 ⋅113063.

It can be written as a sum of positive squares in 2 ways, for example, as 73441 + 70756 = 271^2 + 266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144197 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144167) 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, 1718 + ... + 1799.

It is an arithmetic number, because the mean of its divisors is an integer number (36939).

2¹⁴⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

144197 is a deficient number, since it is larger than the sum of its proper divisors (3559).

144197 is an equidigital number, since it uses as much as digits as its factorization.

144197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558.

The product of its digits is 1008, while the sum is 26.

The square root of 144197 is about 379.7328007955. The cubic root of 144197 is about 52.4387191248.

The spelling of 144197 in words is "one hundred forty-four thousand, one hundred ninety-seven".