143523 has 12 divisors (see below), whose sum is σ = 213408. Its totient is φ = 92880.

The previous prime is 143519. The next prime is 143527. The reversal of 143523 is 325341.

143523 is a `hidden beast` number, since 143 + 523 = 666.

It is an interprime number because it is at equal distance from previous prime (143519) and next prime (143527).

It is not a de Polignac number, because 143523 - 2² = 143519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143496 and 143505.

It is not an unprimeable number, because it can be changed into a prime (143527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (17784).

2¹⁴³⁵²³ is an apocalyptic number.

143523 is a deficient number, since it is larger than the sum of its proper divisors (69885).

143523 is a wasteful number, since it uses less digits than its factorization.

143523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 471 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 143523 is about 378.8442951926. The cubic root of 143523 is about 52.3568891572.

Adding to 143523 its reverse (325341), we get a palindrome (468864).

It can be divided in two parts, 143 and 523, that added together give a palindrome (666).

The spelling of 143523 in words is "one hundred forty-three thousand, five hundred twenty-three".