143744 has 16 divisors (see below), whose sum is σ = 286620. Its totient is φ = 71808.

The previous prime is 143743. The next prime is 143779. The reversal of 143744 is 447341.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143743) by changing a digit.

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 as a sum of consecutive naturals, namely, 434 + ... + 689.

2¹⁴³⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

143744 is a deficient number, since it is larger than the sum of its proper divisors (142876).

143744 is an equidigital number, since it uses as much as digits as its factorization.

143744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1125 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 143744 is about 379.1358595543. The cubic root of 143744 is about 52.3837488209.

The spelling of 143744 in words is "one hundred forty-three thousand, seven hundred forty-four", and thus it is an iban number.