143432897 has 2 divisors, whose sum is σ = 143432898. Its totient is φ = 143432896.

The previous prime is 143432873. The next prime is 143432909. The reversal of 143432897 is 798234341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99820081 + 43612816 = 9991^2 + 6604^2 .

It is a cyclic number.

It is not a de Polignac number, because 143432897 - 2¹² = 143428801 is a prime.

It is not a weakly prime, because it can be changed into another prime (143432867) 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, 71716448 + 71716449.

It is an arithmetic number, because the mean of its divisors is an integer number (71716449).

Almost surely, 2^143432897 is an apocalyptic number.

It is an amenable number.

143432897 is a deficient number, since it is larger than the sum of its proper divisors (1).

143432897 is an equidigital number, since it uses as much as digits as its factorization.

143432897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 143432897 is about 11976.3473981010. The cubic root of 143432897 is about 523.4593040184.

The spelling of 143432897 in words is "one hundred forty-three million, four hundred thirty-two thousand, eight hundred ninety-seven".