144831641 has 2 divisors, whose sum is σ = 144831642. Its totient is φ = 144831640.

The previous prime is 144831613. The next prime is 144831647. The reversal of 144831641 is 146138441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134073241 + 10758400 = 11579^2 + 3280^2 .

It is a cyclic number.

It is not a de Polignac number, because 144831641 - 2¹⁴ = 144815257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144831598 and 144831607.

It is not a weakly prime, because it can be changed into another prime (144831647) 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, 72415820 + 72415821.

It is an arithmetic number, because the mean of its divisors is an integer number (72415821).

Almost surely, 2^144831641 is an apocalyptic number.

It is an amenable number.

144831641 is a deficient number, since it is larger than the sum of its proper divisors (1).

144831641 is an equidigital number, since it uses as much as digits as its factorization.

144831641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 144831641 is about 12034.6018214148. The cubic root of 144831641 is about 525.1553777442.

The spelling of 144831641 in words is "one hundred forty-four million, eight hundred thirty-one thousand, six hundred forty-one".