142032540 has 96 divisors (see below), whose sum is σ = 430811136. Its totient is φ = 34755840.

The previous prime is 142032511. The next prime is 142032557. The reversal of 142032540 is 45230241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164149 + ... + 165011.

It is an arithmetic number, because the mean of its divisors is an integer number (4487616).

Almost surely, 2^142032540 is an apocalyptic number.

142032540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142032540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215405568).

142032540 is an abundant number, since it is smaller than the sum of its proper divisors (288778596).

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

142032540 is a wasteful number, since it uses less digits than its factorization.

142032540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142032540 is about 11917.7405576728. The cubic root of 142032540 is about 521.7501924164.

Adding to 142032540 its reverse (45230241), we get a palindrome (187262781).

The spelling of 142032540 in words is "one hundred forty-two million, thirty-two thousand, five hundred forty".