144555623 has 2 divisors, whose sum is σ = 144555624. Its totient is φ = 144555622.

The previous prime is 144555617. The next prime is 144555679. The reversal of 144555623 is 326555441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144555623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144555613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72277811 + 72277812.

It is an arithmetic number, because the mean of its divisors is an integer number (72277812).

Almost surely, 2^144555623 is an apocalyptic number.

144555623 is a deficient number, since it is larger than the sum of its proper divisors (1).

144555623 is an equidigital number, since it uses as much as digits as its factorization.

144555623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

The square root of 144555623 is about 12023.1286693606. The cubic root of 144555623 is about 524.8215544711.

The spelling of 144555623 in words is "one hundred forty-four million, five hundred fifty-five thousand, six hundred twenty-three".