142320000 has 160 divisors (see below), whose sum is σ = 473192280. Its totient is φ = 37888000.

The previous prime is 142319953. The next prime is 142320011. The reversal of 142320000 is 23241.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 239704 + ... + 240296.

Almost surely, 2^142320000 is an apocalyptic number.

142320000 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 142320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236596140).

142320000 is an abundant number, since it is smaller than the sum of its proper divisors (330872280).

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

142320000 is an frugal number, since it uses more digits than its factorization.

142320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 142320000 is about 11929.7946336054. The cubic root of 142320000 is about 522.1019457089.

Adding to 142320000 its reverse (23241), we get a palindrome (142343241).

The spelling of 142320000 in words is "one hundred forty-two million, three hundred twenty thousand".