162943 has 4 divisors (see below), whose sum is σ = 177768. Its totient is φ = 148120.

The previous prime is 162937. The next prime is 162947. The reversal of 162943 is 349261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349261 = 11 ⋅31751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162943 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 (162947) 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 3 ways as a sum of consecutive naturals, for example, 7396 + ... + 7417.

It is an arithmetic number, because the mean of its divisors is an integer number (44442).

2¹⁶²⁹⁴³ is an apocalyptic number.

162943 is a deficient number, since it is larger than the sum of its proper divisors (14825).

162943 is a wasteful number, since it uses less digits than its factorization.

162943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14824.

The product of its digits is 1296, while the sum is 25.

The square root of 162943 is about 403.6619873112. The cubic root of 162943 is about 54.6191875744.

The spelling of 162943 in words is "one hundred sixty-two thousand, nine hundred forty-three".