220143132 has 144 divisors (see below), whose sum is σ = 655960032. Its totient is φ = 61501440.

The previous prime is 220143127. The next prime is 220143151. The reversal of 220143132 is 231341022.

220143132 is a `hidden beast` number, since 2 + 201 + 431 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356488 + ... + 357104.

It is an arithmetic number, because the mean of its divisors is an integer number (4555278).

Almost surely, 2^220143132 is an apocalyptic number.

220143132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220143132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327980016).

220143132 is an abundant number, since it is smaller than the sum of its proper divisors (435816900).

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

220143132 is a wasteful number, since it uses less digits than its factorization.

220143132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 220143132 is about 14837.2211683994. The cubic root of 220143132 is about 603.8119636004.

Adding to 220143132 its reverse (231341022), we get a palindrome (451484154).

It can be divided in two parts, 220143 and 132, that multiplied together give a triangular number (29058876 = T₇₆₂₃).

The spelling of 220143132 in words is "two hundred twenty million, one hundred forty-three thousand, one hundred thirty-two".