944139 has 8 divisors (see below), whose sum is σ = 1438720. Its totient is φ = 539496.

The previous prime is 944137. The next prime is 944143. The reversal of 944139 is 931449.

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

It is not a de Polignac number, because 944139 - 2¹ = 944137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (944137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22459 + ... + 22500.

It is an arithmetic number, because the mean of its divisors is an integer number (179840).

2⁹⁴⁴¹³⁹ is an apocalyptic number.

944139 is a deficient number, since it is larger than the sum of its proper divisors (494581).

944139 is a wasteful number, since it uses less digits than its factorization.

944139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44969.

The product of its digits is 3888, while the sum is 30.

The square root of 944139 is about 971.6681532293. The cubic root of 944139 is about 98.1021772012.

The spelling of 944139 in words is "nine hundred forty-four thousand, one hundred thirty-nine".