143439147 has 16 divisors (see below), whose sum is σ = 216514080. Its totient is φ = 93820896.

The previous prime is 143439143. The next prime is 143439157. The reversal of 143439147 is 741934341.

It is not a de Polignac number, because 143439147 - 2² = 143439143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143439143) 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 in 15 ways as a sum of consecutive naturals, for example, 48688 + ... + 51549.

It is an arithmetic number, because the mean of its divisors is an integer number (13532130).

Almost surely, 2^143439147 is an apocalyptic number.

143439147 is a deficient number, since it is larger than the sum of its proper divisors (73074933).

143439147 is a wasteful number, since it uses less digits than its factorization.

143439147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100299 (or 100293 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 143439147 is about 11976.6083262333. The cubic root of 143439147 is about 523.4669070468.

The spelling of 143439147 in words is "one hundred forty-three million, four hundred thirty-nine thousand, one hundred forty-seven".