144916613 has 2 divisors, whose sum is σ = 144916614. Its totient is φ = 144916612.

The previous prime is 144916561. The next prime is 144916621. The reversal of 144916613 is 316619441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 388129 = 12022^2 + 623^2 .

It is a cyclic number.

It is not a de Polignac number, because 144916613 - 2²⁴ = 128139397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144916643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72458306 + 72458307.

It is an arithmetic number, because the mean of its divisors is an integer number (72458307).

Almost surely, 2^144916613 is an apocalyptic number.

It is an amenable number.

144916613 is a deficient number, since it is larger than the sum of its proper divisors (1).

144916613 is an equidigital number, since it uses as much as digits as its factorization.

144916613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 144916613 is about 12038.1316241350. The cubic root of 144916613 is about 525.2580596777.

The spelling of 144916613 in words is "one hundred forty-four million, nine hundred sixteen thousand, six hundred thirteen".