143132641 has 2 divisors, whose sum is σ = 143132642. Its totient is φ = 143132640.

The previous prime is 143132629. The next prime is 143132651. The reversal of 143132641 is 146231341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135955600 + 7177041 = 11660^2 + 2679^2 .

It is an emirp because it is prime and its reverse (146231341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143132641 is a prime.

It is not a weakly prime, because it can be changed into another prime (143132621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71566320 + 71566321.

It is an arithmetic number, because the mean of its divisors is an integer number (71566321).

Almost surely, 2^143132641 is an apocalyptic number.

It is an amenable number.

143132641 is a deficient number, since it is larger than the sum of its proper divisors (1).

143132641 is an equidigital number, since it uses as much as digits as its factorization.

143132641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 143132641 is about 11963.8054564591. The cubic root of 143132641 is about 523.0937867628.

Adding to 143132641 its reverse (146231341), we get a palindrome (289363982).

The spelling of 143132641 in words is "one hundred forty-three million, one hundred thirty-two thousand, six hundred forty-one".