142136140 has 24 divisors (see below), whose sum is σ = 299158272. Its totient is φ = 56726400.

The previous prime is 142136119. The next prime is 142136171. The reversal of 142136140 is 41631241.

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 7 ways as a sum of consecutive naturals, for example, 1365 + ... + 16915.

It is an arithmetic number, because the mean of its divisors is an integer number (12464928).

Almost surely, 2^142136140 is an apocalyptic number.

142136140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142136140 is an abundant number, since it is smaller than the sum of its proper divisors (157022132).

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

142136140 is a wasteful number, since it uses less digits than its factorization.

142136140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16017 (or 16015 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 142136140 is about 11922.0862268313. The cubic root of 142136140 is about 521.8770182431.

Adding to 142136140 its reverse (41631241), we get a palindrome (183767381).

The spelling of 142136140 in words is "one hundred forty-two million, one hundred thirty-six thousand, one hundred forty".