132143220 has 72 divisors (see below), whose sum is σ = 437280480. Its totient is φ = 32034240.

The previous prime is 132143201. The next prime is 132143239. The reversal of 132143220 is 22341231.

It is an interprime number because it is at equal distance from previous prime (132143201) and next prime (132143239).

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

It is a junction number, because it is equal to n+sod(n) for n = 132143193 and 132143202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31390 + ... + 35349.

It is an arithmetic number, because the mean of its divisors is an integer number (6073340).

Almost surely, 2^132143220 is an apocalyptic number.

132143220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132143220 is an abundant number, since it is smaller than the sum of its proper divisors (305137260).

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

132143220 is a wasteful number, since it uses less digits than its factorization.

132143220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66765 (or 66760 counting only the distinct ones).

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

The square root of 132143220 is about 11495.3564538034. The cubic root of 132143220 is about 509.3484181745.

Adding to 132143220 its reverse (22341231), we get a palindrome (154484451).

The spelling of 132143220 in words is "one hundred thirty-two million, one hundred forty-three thousand, two hundred twenty".