142224500 has 96 divisors (see below), whose sum is σ = 356952960. Its totient is φ = 48960000.

The previous prime is 142224461. The next prime is 142224503. The reversal of 142224500 is 5422241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142224503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103820 + ... + 105180.

It is an arithmetic number, because the mean of its divisors is an integer number (3718260).

Almost surely, 2^142224500 is an apocalyptic number.

142224500 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 142224500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178476480).

142224500 is an abundant number, since it is smaller than the sum of its proper divisors (214728460).

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

142224500 is a wasteful number, since it uses less digits than its factorization.

142224500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 142224500 is about 11925.7913783531. The cubic root of 142224500 is about 521.9851387655.

Adding to 142224500 its reverse (5422241), we get a palindrome (147646741).

The spelling of 142224500 in words is "one hundred forty-two million, two hundred twenty-four thousand, five hundred".