143641441 has 2 divisors, whose sum is σ = 143641442. Its totient is φ = 143641440.

The previous prime is 143641429. The next prime is 143641481. The reversal of 143641441 is 144146341.

143641441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111197025 + 32444416 = 10545^2 + 5696^2 .

It is a cyclic number.

It is not a de Polignac number, because 143641441 - 2⁹ = 143640929 is a prime.

It is not a weakly prime, because it can be changed into another prime (143641481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71820720 + 71820721.

It is an arithmetic number, because the mean of its divisors is an integer number (71820721).

Almost surely, 2^143641441 is an apocalyptic number.

It is an amenable number.

143641441 is a deficient number, since it is larger than the sum of its proper divisors (1).

143641441 is an equidigital number, since it uses as much as digits as its factorization.

143641441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 143641441 is about 11985.0507299719. The cubic root of 143641441 is about 523.7128753996.

Adding to 143641441 its reverse (144146341), we get a palindrome (287787782).

It can be divided in two parts, 143641 and 441, that multiplied together give a square (63345681 = 7959²).

The spelling of 143641441 in words is "one hundred forty-three million, six hundred forty-one thousand, four hundred forty-one".