143231629 has 2 divisors, whose sum is σ = 143231630. Its totient is φ = 143231628.

The previous prime is 143231611. The next prime is 143231657. The reversal of 143231629 is 926132341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88397604 + 54834025 = 9402^2 + 7405^2 .

It is a cyclic number.

It is not a de Polignac number, because 143231629 - 2⁵ = 143231597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143231629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143231929) 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, 71615814 + 71615815.

It is an arithmetic number, because the mean of its divisors is an integer number (71615815).

Almost surely, 2^143231629 is an apocalyptic number.

It is an amenable number.

143231629 is a deficient number, since it is larger than the sum of its proper divisors (1).

143231629 is an equidigital number, since it uses as much as digits as its factorization.

143231629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 143231629 is about 11967.9417194437. The cubic root of 143231629 is about 523.2143464415.

The spelling of 143231629 in words is "one hundred forty-three million, two hundred thirty-one thousand, six hundred twenty-nine".