143976 has 32 divisors (see below), whose sum is σ = 411840. Its totient is φ = 41088.

The previous prime is 143971. The next prime is 143977. The reversal of 143976 is 679341.

It is a happy number.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143976.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (12870).

2¹⁴³⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

143976 is an abundant number, since it is smaller than the sum of its proper divisors (267864).

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

143976 is a wasteful number, since it uses less digits than its factorization.

143976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 869 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 143976 is about 379.4416951259. The cubic root of 143976 is about 52.4119157875.

The spelling of 143976 in words is "one hundred forty-three thousand, nine hundred seventy-six".