142132220 has 24 divisors (see below), whose sum is σ = 304111584. Its totient is φ = 55779776.

The previous prime is 142132187. The next prime is 142132229. The reversal of 142132220 is 22231241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142132229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65984 + ... + 68103.

It is an arithmetic number, because the mean of its divisors is an integer number (12671316).

Almost surely, 2^142132220 is an apocalyptic number.

142132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142132220 is an abundant number, since it is smaller than the sum of its proper divisors (161979364).

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

142132220 is a wasteful number, since it uses less digits than its factorization.

142132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134149 (or 134147 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142132220 is about 11921.9218249408. The cubic root of 142132220 is about 521.8722205501.

Adding to 142132220 its reverse (22231241), we get a palindrome (164363461).

The spelling of 142132220 in words is "one hundred forty-two million, one hundred thirty-two thousand, two hundred twenty".