143420429 has 2 divisors, whose sum is σ = 143420430. Its totient is φ = 143420428.

The previous prime is 143420383. The next prime is 143420447. The reversal of 143420429 is 924024341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77404804 + 66015625 = 8798^2 + 8125^2 .

It is a cyclic number.

It is not a de Polignac number, because 143420429 - 2¹² = 143416333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143420729) 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, 71710214 + 71710215.

It is an arithmetic number, because the mean of its divisors is an integer number (71710215).

Almost surely, 2^143420429 is an apocalyptic number.

It is an amenable number.

143420429 is a deficient number, since it is larger than the sum of its proper divisors (1).

143420429 is an equidigital number, since it uses as much as digits as its factorization.

143420429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 143420429 is about 11975.8268608059. The cubic root of 143420429 is about 523.4441362295. Note that the first 3 decimals are identical.

The spelling of 143420429 in words is "one hundred forty-three million, four hundred twenty thousand, four hundred twenty-nine".