143055947 has 2 divisors, whose sum is σ = 143055948. Its totient is φ = 143055946.

The previous prime is 143055937. The next prime is 143055961. The reversal of 143055947 is 749550341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143055947 - 2⁴ = 143055931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143055947.

It is not a weakly prime, because it can be changed into another prime (143055907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71527973 + 71527974.

It is an arithmetic number, because the mean of its divisors is an integer number (71527974).

Almost surely, 2^143055947 is an apocalyptic number.

143055947 is a deficient number, since it is larger than the sum of its proper divisors (1).

143055947 is an equidigital number, since it uses as much as digits as its factorization.

143055947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 143055947 is about 11960.5997759310. The cubic root of 143055947 is about 523.0003412189. Note that the first 3 decimals are identical.

The spelling of 143055947 in words is "one hundred forty-three million, fifty-five thousand, nine hundred forty-seven".