143867 has 4 divisors (see below), whose sum is σ = 146976. Its totient is φ = 140760.

The previous prime is 143833. The next prime is 143873. The reversal of 143867 is 768341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143867 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143867.

It is not an unprimeable number, because it can be changed into a prime (143807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (36744).

2¹⁴³⁸⁶⁷ is an apocalyptic number.

143867 is a deficient number, since it is larger than the sum of its proper divisors (3109).

143867 is an equidigital number, since it uses as much as digits as its factorization.

143867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108.

The product of its digits is 4032, while the sum is 29.

The square root of 143867 is about 379.2980358504. The cubic root of 143867 is about 52.3986859411.

The spelling of 143867 in words is "one hundred forty-three thousand, eight hundred sixty-seven".