144345197 has 2 divisors, whose sum is σ = 144345198. Its totient is φ = 144345196.

The previous prime is 144345191. The next prime is 144345199. The reversal of 144345197 is 791543441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137616361 + 6728836 = 11731^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 144345197 - 2¹⁰ = 144344173 is a prime.

Together with 144345199, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144345197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144345191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72172598 + 72172599.

It is an arithmetic number, because the mean of its divisors is an integer number (72172599).

Almost surely, 2^144345197 is an apocalyptic number.

It is an amenable number.

144345197 is a deficient number, since it is larger than the sum of its proper divisors (1).

144345197 is an equidigital number, since it uses as much as digits as its factorization.

144345197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 144345197 is about 12014.3745987879. The cubic root of 144345197 is about 524.5667742744.

The spelling of 144345197 in words is "one hundred forty-four million, three hundred forty-five thousand, one hundred ninety-seven".