143023 has 4 divisors (see below), whose sum is σ = 144720. Its totient is φ = 141328.

The previous prime is 142993. The next prime is 143053. The reversal of 143023 is 320341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320341 = 7 ⋅45763.

It is an interprime number because it is at equal distance from previous prime (142993) and next prime (143053).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143023 is a prime.

It is a Duffinian number.

143023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 142994 and 143012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (36180).

2¹⁴³⁰²³ is an apocalyptic number.

143023 is a deficient number, since it is larger than the sum of its proper divisors (1697).

143023 is an equidigital number, since it uses as much as digits as its factorization.

143023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 143023 is about 378.1838177395. The cubic root of 143023 is about 52.2960187662.

Adding to 143023 its reverse (320341), we get a palindrome (463364).

The spelling of 143023 in words is "one hundred forty-three thousand, twenty-three", and thus it is an iban number.