143887 has 4 divisors (see below), whose sum is σ = 151480. Its totient is φ = 136296.

The previous prime is 143881. The next prime is 143909. The reversal of 143887 is 788341.

It is a happy number.

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 143887 - 2³ = 143879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143881) 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, 3768 + ... + 3805.

It is an arithmetic number, because the mean of its divisors is an integer number (37870).

2¹⁴³⁸⁸⁷ is an apocalyptic number.

143887 is a deficient number, since it is larger than the sum of its proper divisors (7593).

143887 is an equidigital number, since it uses as much as digits as its factorization.

143887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592.

The product of its digits is 5376, while the sum is 31.

The square root of 143887 is about 379.3243994261. The cubic root of 143887 is about 52.4011139363.

The spelling of 143887 in words is "one hundred forty-three thousand, eight hundred eighty-seven".