144564197 has 2 divisors, whose sum is σ = 144564198. Its totient is φ = 144564196.

The previous prime is 144564071. The next prime is 144564247. The reversal of 144564197 is 791465441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83192641 + 61371556 = 9121^2 + 7834^2 .

It is a cyclic number.

It is not a de Polignac number, because 144564197 - 2¹⁴ = 144547813 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144564697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72282098 + 72282099.

It is an arithmetic number, because the mean of its divisors is an integer number (72282099).

Almost surely, 2^144564197 is an apocalyptic number.

It is an amenable number.

144564197 is a deficient number, since it is larger than the sum of its proper divisors (1).

144564197 is an equidigital number, since it uses as much as digits as its factorization.

144564197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 144564197 is about 12023.4852268383. The cubic root of 144564197 is about 524.8319304794.

The spelling of 144564197 in words is "one hundred forty-four million, five hundred sixty-four thousand, one hundred ninety-seven".