144356437 has 2 divisors, whose sum is σ = 144356438. Its totient is φ = 144356436.

The previous prime is 144356431. The next prime is 144356479. The reversal of 144356437 is 734653441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127373796 + 16982641 = 11286^2 + 4121^2 .

It is an emirp because it is prime and its reverse (734653441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144356437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144356396 and 144356405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144356431) 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, 72178218 + 72178219.

It is an arithmetic number, because the mean of its divisors is an integer number (72178219).

Almost surely, 2^144356437 is an apocalyptic number.

It is an amenable number.

144356437 is a deficient number, since it is larger than the sum of its proper divisors (1).

144356437 is an equidigital number, since it uses as much as digits as its factorization.

144356437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 37.

The square root of 144356437 is about 12014.8423626779. The cubic root of 144356437 is about 524.5803897315.

The spelling of 144356437 in words is "one hundred forty-four million, three hundred fifty-six thousand, four hundred thirty-seven".