143979 has 8 divisors (see below), whose sum is σ = 209472. Its totient is φ = 87240.

The previous prime is 143977. The next prime is 143981. The reversal of 143979 is 979341.

143979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (143977) and next prime (143981).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143979 - 2¹ = 143977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4363 = 143979 / (1 + 4 + 3 + 9 + 7 + 9).

It is a d-powerful number, because it can be written as 1 + 4 + 9² + 3⁹ + 7⁶ + 9⁴ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143979.

It is not an unprimeable number, because it can be changed into a prime (143971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (26184).

2¹⁴³⁹⁷⁹ is an apocalyptic number.

143979 is a deficient number, since it is larger than the sum of its proper divisors (65493).

143979 is a wasteful number, since it uses less digits than its factorization.

143979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377.

The product of its digits is 6804, while the sum is 33.

The square root of 143979 is about 379.4456482818. The cubic root of 143979 is about 52.4122798173.

It can be divided in two parts, 14 and 3979, that added together give a palindrome (3993).

The spelling of 143979 in words is "one hundred forty-three thousand, nine hundred seventy-nine".