144999641 has 2 divisors, whose sum is σ = 144999642. Its totient is φ = 144999640.

The previous prime is 144999629. The next prime is 144999649. The reversal of 144999641 is 146999441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141015625 + 3984016 = 11875^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 144999641 - 2¹⁰ = 144998617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144999649) 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, 72499820 + 72499821.

It is an arithmetic number, because the mean of its divisors is an integer number (72499821).

Almost surely, 2^144999641 is an apocalyptic number.

It is an amenable number.

144999641 is a deficient number, since it is larger than the sum of its proper divisors (1).

144999641 is an equidigital number, since it uses as much as digits as its factorization.

144999641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 144999641 is about 12041.5796721194. The cubic root of 144999641 is about 525.3583536770.

The spelling of 144999641 in words is "one hundred forty-four million, nine hundred ninety-nine thousand, six hundred forty-one".