143646 has 16 divisors (see below), whose sum is σ = 291600. Its totient is φ = 47168.

The previous prime is 143629. The next prime is 143651. The reversal of 143646 is 646341.

143646 = 188² + 189² + ... + 191².

143646 is nontrivially palindromic in base 5.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 668.

It is an arithmetic number, because the mean of its divisors is an integer number (18225).

2¹⁴³⁶⁴⁶ is an apocalyptic number.

143646 is an abundant number, since it is smaller than the sum of its proper divisors (147954).

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

143646 is a wasteful number, since it uses less digits than its factorization.

143646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its digits is 1728, while the sum is 24.

The square root of 143646 is about 379.0065962487. The cubic root of 143646 is about 52.3718416005.

Adding to 143646 its reverse (646341), we get a palindrome (789987).

The spelling of 143646 in words is "one hundred forty-three thousand, six hundred forty-six".