143228532 has 12 divisors (see below), whose sum is σ = 334199936. Its totient is φ = 47742840.

The previous prime is 143228509. The next prime is 143228537. The reversal of 143228532 is 235822341.

143228532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 143228532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143228537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5967844 + ... + 5967867.

Almost surely, 2^143228532 is an apocalyptic number.

143228532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143228532 is an abundant number, since it is smaller than the sum of its proper divisors (190971404).

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

143228532 is a wasteful number, since it uses less digits than its factorization.

143228532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11935718 (or 11935716 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 143228532 is about 11967.8123314163. The cubic root of 143228532 is about 523.2105753785.

The spelling of 143228532 in words is "one hundred forty-three million, two hundred twenty-eight thousand, five hundred thirty-two".