142910720 has 72 divisors (see below), whose sum is σ = 344373120. Its totient is φ = 56821760.

The previous prime is 142910711. The next prime is 142910777. The reversal of 142910720 is 27019241.

It is a self number, because there is not a number n which added to its sum of digits gives 142910720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397901 + ... + 398259.

It is an arithmetic number, because the mean of its divisors is an integer number (4782960).

Almost surely, 2^142910720 is an apocalyptic number.

142910720 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 142910720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172186560).

142910720 is an abundant number, since it is smaller than the sum of its proper divisors (201462400).

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

142910720 is an equidigital number, since it uses as much as digits as its factorization.

142910720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 142910720 is about 11954.5271759280. The cubic root of 142910720 is about 522.8233021215.

Adding to 142910720 its reverse (27019241), we get a palindrome (169929961).

The spelling of 142910720 in words is "one hundred forty-two million, nine hundred ten thousand, seven hundred twenty".