142520130 has 48 divisors (see below), whose sum is σ = 375036480. Its totient is φ = 37545504.

The previous prime is 142520117. The next prime is 142520137. The reversal of 142520130 is 31025241.

142520130 is a `hidden beast` number, since 14 + 2 + 520 + 130 = 666.

142520130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (142520137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2070 + ... + 17009.

It is an arithmetic number, because the mean of its divisors is an integer number (7813260).

Almost surely, 2^142520130 is an apocalyptic number.

142520130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142520130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187518240).

142520130 is an abundant number, since it is smaller than the sum of its proper divisors (232516350).

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

142520130 is a wasteful number, since it uses less digits than its factorization.

142520130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19175 (or 19172 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 142520130 is about 11938.1795094562. The cubic root of 142520130 is about 522.3465572031.

Adding to 142520130 its reverse (31025241), we get a palindrome (173545371).

The spelling of 142520130 in words is "one hundred forty-two million, five hundred twenty thousand, one hundred thirty".