992143 has 4 divisors (see below), whose sum is σ = 1005808. Its totient is φ = 978480.

The previous prime is 992141. The next prime is 992153. The reversal of 992143 is 341299.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341299 = 7 ⋅48757.

It is a cyclic number.

It is not a de Polignac number, because 992143 - 2¹ = 992141 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 (992141) 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, 6723 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (251452).

2⁹⁹²¹⁴³ is an apocalyptic number.

992143 is a deficient number, since it is larger than the sum of its proper divisors (13665).

992143 is a wasteful number, since it uses less digits than its factorization.

992143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664.

The product of its digits is 1944, while the sum is 28.

The square root of 992143 is about 996.0637529797. The cubic root of 992143 is about 99.7374110741.

The spelling of 992143 in words is "nine hundred ninety-two thousand, one hundred forty-three".