144453391 has 2 divisors, whose sum is σ = 144453392. Its totient is φ = 144453390.

The previous prime is 144453367. The next prime is 144453431. The reversal of 144453391 is 193354441.

144453391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144453391 - 2¹⁹ = 143929103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144453341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72226695 + 72226696.

It is an arithmetic number, because the mean of its divisors is an integer number (72226696).

Almost surely, 2^144453391 is an apocalyptic number.

144453391 is a deficient number, since it is larger than the sum of its proper divisors (1).

144453391 is an equidigital number, since it uses as much as digits as its factorization.

144453391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 144453391 is about 12018.8764449927. The cubic root of 144453391 is about 524.6978046203.

The spelling of 144453391 in words is "one hundred forty-four million, four hundred fifty-three thousand, three hundred ninety-one".