144394399 has 2 divisors, whose sum is σ = 144394400. Its totient is φ = 144394398.

The previous prime is 144394363. The next prime is 144394409. The reversal of 144394399 is 993493441.

It is a happy number.

144394399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144394399 - 2¹¹ = 144392351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144394309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72197199 + 72197200.

It is an arithmetic number, because the mean of its divisors is an integer number (72197200).

Almost surely, 2^144394399 is an apocalyptic number.

144394399 is a deficient number, since it is larger than the sum of its proper divisors (1).

144394399 is an equidigital number, since it uses as much as digits as its factorization.

144394399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 144394399 is about 12016.4220548381. The cubic root of 144394399 is about 524.6263693816.

The spelling of 144394399 in words is "one hundred forty-four million, three hundred ninety-four thousand, three hundred ninety-nine".