939143 has 4 divisors (see below), whose sum is σ = 947568. Its totient is φ = 930720.

The previous prime is 939121. The next prime is 939157. The reversal of 939143 is 341939.

939143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (236892).

2⁹³⁹¹⁴³ is an apocalyptic number.

939143 is a deficient number, since it is larger than the sum of its proper divisors (8425).

939143 is a wasteful number, since it uses less digits than its factorization.

939143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424.

The product of its digits is 2916, while the sum is 29.

The square root of 939143 is about 969.0939066984. The cubic root of 939143 is about 97.9288321286.

The spelling of 939143 in words is "nine hundred thirty-nine thousand, one hundred forty-three".