144464407 has 2 divisors, whose sum is σ = 144464408. Its totient is φ = 144464406.

The previous prime is 144464393. The next prime is 144464413. The reversal of 144464407 is 704464441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144464407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144464497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72232203 + 72232204.

It is an arithmetic number, because the mean of its divisors is an integer number (72232204).

Almost surely, 2^144464407 is an apocalyptic number.

144464407 is a deficient number, since it is larger than the sum of its proper divisors (1).

144464407 is an equidigital number, since it uses as much as digits as its factorization.

144464407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 34.

The square root of 144464407 is about 12019.3347153659. The cubic root of 144464407 is about 524.7111420805.

Adding to 144464407 its sum of digits (34), we get a palindrome (144464441).

The spelling of 144464407 in words is "one hundred forty-four million, four hundred sixty-four thousand, four hundred seven".