142020130 has 24 divisors (see below), whose sum is σ = 297373788. Its totient is φ = 48692448.

The previous prime is 142020119. The next prime is 142020149. The reversal of 142020130 is 31020241.

It can be written as a sum of positive squares in 2 ways, for example, as 132917841 + 9102289 = 11529^2 + 3017^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142020130.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144429 + ... + 145408.

Almost surely, 2^142020130 is an apocalyptic number.

142020130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142020130 is an abundant number, since it is smaller than the sum of its proper divisors (155353658).

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

142020130 is a wasteful number, since it uses less digits than its factorization.

142020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289858 (or 289851 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 142020130 is about 11917.2198939182. The cubic root of 142020130 is about 521.7349961136.

Adding to 142020130 its reverse (31020241), we get a palindrome (173040371).

The spelling of 142020130 in words is "one hundred forty-two million, twenty thousand, one hundred thirty".