144220613 has 2 divisors, whose sum is σ = 144220614. Its totient is φ = 144220612.

The previous prime is 144220547. The next prime is 144220679. The reversal of 144220613 is 316022441.

It is a balanced prime because it is at equal distance from previous prime (144220547) and next prime (144220679).

It can be written as a sum of positive squares in only one way, i.e., 124701889 + 19518724 = 11167^2 + 4418^2 .

It is a cyclic number.

It is not a de Polignac number, because 144220613 - 2²⁰ = 143172037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144220693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72110306 + 72110307.

It is an arithmetic number, because the mean of its divisors is an integer number (72110307).

Almost surely, 2^144220613 is an apocalyptic number.

It is an amenable number.

144220613 is a deficient number, since it is larger than the sum of its proper divisors (1).

144220613 is an equidigital number, since it uses as much as digits as its factorization.

144220613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 144220613 is about 12009.1886903321. The cubic root of 144220613 is about 524.4158133851.

The spelling of 144220613 in words is "one hundred forty-four million, two hundred twenty thousand, six hundred thirteen".