143904 has 24 divisors (see below), whose sum is σ = 378000. Its totient is φ = 47936.

The previous prime is 143881. The next prime is 143909. The reversal of 143904 is 409341.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×143904² = 41416722432, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143904.

It is not an unprimeable number, because it can be changed into a prime (143909) by changing a digit.

143904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654 + ... + 845.

It is an arithmetic number, because the mean of its divisors is an integer number (15750).

2¹⁴³⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

143904 is an abundant number, since it is smaller than the sum of its proper divisors (234096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143904 is a wasteful number, since it uses less digits than its factorization.

143904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 143904 is about 379.3468070249. The cubic root of 143904 is about 52.4031775553.

The spelling of 143904 in words is "one hundred forty-three thousand, nine hundred four".