143446 has 8 divisors (see below), whose sum is σ = 227880. Its totient is φ = 67488.

The previous prime is 143443. The next prime is 143461. The reversal of 143446 is 644341.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143443) 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 3 ways as a sum of consecutive naturals, for example, 2076 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (28485).

2¹⁴³⁴⁴⁶ is an apocalyptic number.

143446 is a deficient number, since it is larger than the sum of its proper divisors (84434).

143446 is a wasteful number, since it uses less digits than its factorization.

143446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238.

The product of its digits is 1152, while the sum is 22.

The square root of 143446 is about 378.7426566945. The cubic root of 143446 is about 52.3475243361.

Adding to 143446 its reverse (644341), we get a palindrome (787787).

The spelling of 143446 in words is "one hundred forty-three thousand, four hundred forty-six".