144395197 has 2 divisors, whose sum is σ = 144395198. Its totient is φ = 144395196.

The previous prime is 144395159. The next prime is 144395203. The reversal of 144395197 is 791593441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112911876 + 31483321 = 10626^2 + 5611^2 .

It is an emirp because it is prime and its reverse (791593441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144395197 - 2¹⁵ = 144362429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144398197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72197598 + 72197599.

It is an arithmetic number, because the mean of its divisors is an integer number (72197599).

Almost surely, 2^144395197 is an apocalyptic number.

It is an amenable number.

144395197 is a deficient number, since it is larger than the sum of its proper divisors (1).

144395197 is an equidigital number, since it uses as much as digits as its factorization.

144395197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 144395197 is about 12016.4552593517. The cubic root of 144395197 is about 524.6273358343.

The spelling of 144395197 in words is "one hundred forty-four million, three hundred ninety-five thousand, one hundred ninety-seven".