142530020 has 48 divisors (see below), whose sum is σ = 316243200. Its totient is φ = 53959392.

The previous prime is 142529999. The next prime is 142530049. The reversal of 142530020 is 20035241.

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, 136661 + ... + 137699.

It is an arithmetic number, because the mean of its divisors is an integer number (6588400).

Almost surely, 2^142530020 is an apocalyptic number.

142530020 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 142530020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158121600).

142530020 is an abundant number, since it is smaller than the sum of its proper divisors (173713180).

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

142530020 is a wasteful number, since it uses less digits than its factorization.

142530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 142530020 is about 11938.5937195300. The cubic root of 142530020 is about 522.3586394448.

Adding to 142530020 its reverse (20035241), we get a palindrome (162565261).

The spelling of 142530020 in words is "one hundred forty-two million, five hundred thirty thousand, twenty".