143436 has 12 divisors (see below), whose sum is σ = 334712. Its totient is φ = 47808.

The previous prime is 143419. The next prime is 143443. The reversal of 143436 is 634341.

143436 = 4² + 5² + ... + 75².

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5965 + ... + 5988.

2¹⁴³⁴³⁶ is an apocalyptic number.

It is an amenable number.

143436 is an abundant number, since it is smaller than the sum of its proper divisors (191276).

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

143436 is a wasteful number, since it uses less digits than its factorization.

143436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11960 (or 11958 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 143436 is about 378.7294548883. The cubic root of 143436 is about 52.3463078798.

Adding to 143436 its reverse (634341), we get a palindrome (777777).

The spelling of 143436 in words is "one hundred forty-three thousand, four hundred thirty-six".