940143 has 4 divisors (see below), whose sum is σ = 1253528. Its totient is φ = 626760.

The previous prime is 940127. The next prime is 940157. The reversal of 940143 is 341049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341049 = 3 ⋅113683.

It is not a de Polignac number, because 940143 - 2⁴ = 940127 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940183) 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, 156688 + ... + 156693.

It is an arithmetic number, because the mean of its divisors is an integer number (313382).

2⁹⁴⁰¹⁴³ is an apocalyptic number.

940143 is a deficient number, since it is larger than the sum of its proper divisors (313385).

940143 is a wasteful number, since it uses less digits than its factorization.

940143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313384.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 940143 is about 969.6097152979. The cubic root of 940143 is about 97.9635780244.

The spelling of 940143 in words is "nine hundred forty thousand, one hundred forty-three".