143583 has 16 divisors (see below), whose sum is σ = 220800. Its totient is φ = 82080.

The previous prime is 143573. The next prime is 143593. The reversal of 143583 is 385341.

It is an interprime number because it is at equal distance from previous prime (143573) and next prime (143593).

It is not a de Polignac number, because 143583 - 2⁴ = 143567 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143583.

It is not an unprimeable number, because it can be changed into a prime (143503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513 + ... + 741.

It is an arithmetic number, because the mean of its divisors is an integer number (13800).

2¹⁴³⁵⁸³ is an apocalyptic number.

143583 is a deficient number, since it is larger than the sum of its proper divisors (77217).

143583 is a wasteful number, since it uses less digits than its factorization.

143583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

The product of its digits is 1440, while the sum is 24.

The square root of 143583 is about 378.9234751239. The cubic root of 143583 is about 52.3641840988.

The spelling of 143583 in words is "one hundred forty-three thousand, five hundred eighty-three".