387143 has 4 divisors (see below), whose sum is σ = 388440. Its totient is φ = 385848.

The previous prime is 387137. The next prime is 387151. The reversal of 387143 is 341783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 387143 - 2⁸ = 386887 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 (387173) 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, 53 + ... + 881.

It is an arithmetic number, because the mean of its divisors is an integer number (97110).

2³⁸⁷¹⁴³ is an apocalyptic number.

387143 is a deficient number, since it is larger than the sum of its proper divisors (1297).

387143 is an equidigital number, since it uses as much as digits as its factorization.

387143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296.

The product of its digits is 2016, while the sum is 26.

The square root of 387143 is about 622.2081645237. The cubic root of 387143 is about 72.8825910260.

The spelling of 387143 in words is "three hundred eighty-seven thousand, one hundred forty-three".