143889047 has 8 divisors (see below), whose sum is σ = 146269200. Its totient is φ = 141528384.

The previous prime is 143889029. The next prime is 143889079. The reversal of 143889047 is 740988341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143889047 - 2⁸ = 143888791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143888989 and 143889007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143889007) 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 7 ways as a sum of consecutive naturals, for example, 10403 + ... + 19899.

It is an arithmetic number, because the mean of its divisors is an integer number (18283650).

Almost surely, 2^143889047 is an apocalyptic number.

143889047 is a deficient number, since it is larger than the sum of its proper divisors (2380153).

143889047 is a wasteful number, since it uses less digits than its factorization.

143889047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 143889047 is about 11995.3760674687. The cubic root of 143889047 is about 524.0136242888.

The spelling of 143889047 in words is "one hundred forty-three million, eight hundred eighty-nine thousand, forty-seven".