143587 has 4 divisors (see below), whose sum is σ = 144760. Its totient is φ = 142416.

The previous prime is 143573. The next prime is 143593. The reversal of 143587 is 785341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143587 - 2¹¹ = 141539 is a prime.

It is a Duffinian number.

143587 is a lucky number.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378 + ... + 655.

It is an arithmetic number, because the mean of its divisors is an integer number (36190).

2¹⁴³⁵⁸⁷ is an apocalyptic number.

143587 is a deficient number, since it is larger than the sum of its proper divisors (1173).

143587 is a wasteful number, since it uses less digits than its factorization.

143587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its digits is 3360, while the sum is 28.

The square root of 143587 is about 378.9287531977. The cubic root of 143587 is about 52.3646703559.

It can be divided in two parts, 14358 and 7, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 143587 in words is "one hundred forty-three thousand, five hundred eighty-seven".