142100120 has 16 divisors (see below), whose sum is σ = 319725360. Its totient is φ = 56840032.

The previous prime is 142100051. The next prime is 142100149. The reversal of 142100120 is 21001241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776212 + ... + 1776291.

It is an arithmetic number, because the mean of its divisors is an integer number (19982835).

Almost surely, 2^142100120 is an apocalyptic number.

142100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142100120 is an abundant number, since it is smaller than the sum of its proper divisors (177625240).

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

142100120 is a wasteful number, since it uses less digits than its factorization.

142100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552514 (or 3552510 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 142100120 is about 11920.5754894636. The cubic root of 142100120 is about 521.8329299994.

Adding to 142100120 its reverse (21001241), we get a palindrome (163101361).

The spelling of 142100120 in words is "one hundred forty-two million, one hundred thousand, one hundred twenty".