142550540 has 96 divisors (see below), whose sum is σ = 349574400. Its totient is φ = 48280320.

The previous prime is 142550539. The next prime is 142550543. The reversal of 142550540 is 45055241.

It is not an unprimeable number, because it can be changed into a prime (142550543) 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 31 ways as a sum of consecutive naturals, for example, 279806 + ... + 280314.

It is an arithmetic number, because the mean of its divisors is an integer number (3641400).

Almost surely, 2^142550540 is an apocalyptic number.

142550540 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 142550540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174787200).

142550540 is an abundant number, since it is smaller than the sum of its proper divisors (207023860).

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

142550540 is a wasteful number, since it uses less digits than its factorization.

142550540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 142550540 is about 11939.4530863017. The cubic root of 142550540 is about 522.3837061756.

The spelling of 142550540 in words is "one hundred forty-two million, five hundred fifty thousand, five hundred forty".