142504320 has 256 divisors, whose sum is σ = 542868480. Its totient is φ = 31088640.

The previous prime is 142504309. The next prime is 142504321. The reversal of 142504320 is 23405241.

142504320 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 (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142504321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308890 + ... + 309350.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^142504320 is an apocalyptic number.

142504320 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 142504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271434240).

142504320 is an abundant number, since it is smaller than the sum of its proper divisors (400364160).

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

142504320 is a wasteful number, since it uses less digits than its factorization.

142504320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 142504320 is about 11937.5173298304. The cubic root of 142504320 is about 522.3272415587.

Adding to 142504320 its reverse (23405241), we get a palindrome (165909561).

The spelling of 142504320 in words is "one hundred forty-two million, five hundred four thousand, three hundred twenty".