143197 has 2 divisors, whose sum is σ = 143198. Its totient is φ = 143196.

The previous prime is 143177. The next prime is 143239. The reversal of 143197 is 791341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75076 + 68121 = 274^2 + 261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71598 + 71599.

It is an arithmetic number, because the mean of its divisors is an integer number (71599).

2¹⁴³¹⁹⁷ is an apocalyptic number.

It is an amenable number.

143197 is a deficient number, since it is larger than the sum of its proper divisors (1).

143197 is an equidigital number, since it uses as much as digits as its factorization.

143197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 143197 is about 378.4137946746. The cubic root of 143197 is about 52.3172177334.

The spelling of 143197 in words is "one hundred forty-three thousand, one hundred ninety-seven".