142531140 has 48 divisors (see below), whose sum is σ = 399611520. Its totient is φ = 37958400.

The previous prime is 142531093. The next prime is 142531157. The reversal of 142531140 is 41135241.

142531140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78240 + ... + 80040.

It is an arithmetic number, because the mean of its divisors is an integer number (8325240).

Almost surely, 2^142531140 is an apocalyptic number.

142531140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142531140 is an abundant number, since it is smaller than the sum of its proper divisors (257080380).

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

142531140 is a wasteful number, since it uses less digits than its factorization.

142531140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132 (or 3130 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 142531140 is about 11938.6406261350. The cubic root of 142531140 is about 522.3600076715.

Adding to 142531140 its reverse (41135241), we get a palindrome (183666381).

The spelling of 142531140 in words is "one hundred forty-two million, five hundred thirty-one thousand, one hundred forty".