162002143 has 4 divisors (see below), whose sum is σ = 162039528. Its totient is φ = 161964760.

The previous prime is 162002123. The next prime is 162002209. The reversal of 162002143 is 341200261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341200261 = 193 ⋅1767877.

It is a cyclic number.

It is not a de Polignac number, because 162002143 - 2¹⁷ = 161871071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162002143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11188 + ... + 21193.

It is an arithmetic number, because the mean of its divisors is an integer number (40509882).

Almost surely, 2^162002143 is an apocalyptic number.

162002143 is a deficient number, since it is larger than the sum of its proper divisors (37385).

162002143 is an equidigital number, since it uses as much as digits as its factorization.

162002143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37384.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 162002143 is about 12728.0062460701. The cubic root of 162002143 is about 545.1385815980.

The spelling of 162002143 in words is "one hundred sixty-two million, two thousand, one hundred forty-three".