144594397 has 2 divisors, whose sum is σ = 144594398. Its totient is φ = 144594396.

The previous prime is 144594391. The next prime is 144594403. The reversal of 144594397 is 793495441.

It is a balanced prime because it is at equal distance from previous prime (144594391) and next prime (144594403).

It can be written as a sum of positive squares in only one way, i.e., 73462041 + 71132356 = 8571^2 + 8434^2 .

It is an emirp because it is prime and its reverse (793495441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144594397 - 2¹⁵ = 144561629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144594391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72297198 + 72297199.

It is an arithmetic number, because the mean of its divisors is an integer number (72297199).

Almost surely, 2^144594397 is an apocalyptic number.

It is an amenable number.

144594397 is a deficient number, since it is larger than the sum of its proper divisors (1).

144594397 is an equidigital number, since it uses as much as digits as its factorization.

144594397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 144594397 is about 12024.7410367126. The cubic root of 144594397 is about 524.8684743841.

It can be divided in two parts, 144594 and 397, that added together give a triangular number (144991 = T₅₃₈).

The spelling of 144594397 in words is "one hundred forty-four million, five hundred ninety-four thousand, three hundred ninety-seven".