142435140 has 24 divisors (see below), whose sum is σ = 398818560. Its totient is φ = 37982688.

The previous prime is 142435127. The next prime is 142435141. The reversal of 142435140 is 41534241.

It is a self number, because there is not a number n which added to its sum of digits gives 142435140.

It is not an unprimeable number, because it can be changed into a prime (142435141) by changing a digit.

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, 1186900 + ... + 1187019.

It is an arithmetic number, because the mean of its divisors is an integer number (16617440).

Almost surely, 2^142435140 is an apocalyptic number.

142435140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142435140 is an abundant number, since it is smaller than the sum of its proper divisors (256383420).

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

142435140 is a wasteful number, since it uses less digits than its factorization.

142435140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373931 (or 2373929 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142435140 is about 11934.6193906634. The cubic root of 142435140 is about 522.2427050632.

Adding to 142435140 its reverse (41534241), we get a palindrome (183969381).

The spelling of 142435140 in words is "one hundred forty-two million, four hundred thirty-five thousand, one hundred forty".