142230555540 has 144 divisors (see below), whose sum is σ = 446248647936. Its totient is φ = 36643622400.

The previous prime is 142230555503. The next prime is 142230555557. The reversal of 142230555540 is 45555032241.

142230555540 is a `hidden beast` number, since 1 + 4 + 22 + 30 + 55 + 554 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 142230555495 and 142230555504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666585 + ... + 853695.

It is an arithmetic number, because the mean of its divisors is an integer number (3098948944).

Almost surely, 2^142230555540 is an apocalyptic number.

142230555540 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 142230555540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223124323968).

142230555540 is an abundant number, since it is smaller than the sum of its proper divisors (304018092396).

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

142230555540 is a wasteful number, since it uses less digits than its factorization.

142230555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187270 (or 187265 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 142230555540 its reverse (45555032241), we get a palindrome (187785587781).

The spelling of 142230555540 in words is "one hundred forty-two billion, two hundred thirty million, five hundred fifty-five thousand, five hundred forty".