142153403440 has 80 divisors (see below), whose sum is σ = 334457388000. Its totient is φ = 56183961600.

The previous prime is 142153403423. The next prime is 142153403477. The reversal of 142153403440 is 44304351241.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 4014292 + ... + 4049548.

It is an arithmetic number, because the mean of its divisors is an integer number (4180717350).

Almost surely, 2^142153403440 is an apocalyptic number.

142153403440 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 142153403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167228694000).

142153403440 is an abundant number, since it is smaller than the sum of its proper divisors (192303984560).

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

142153403440 is a wasteful number, since it uses less digits than its factorization.

142153403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35870 (or 35864 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 142153403440 its reverse (44304351241), we get a palindrome (186457754681).

The spelling of 142153403440 in words is "one hundred forty-two billion, one hundred fifty-three million, four hundred three thousand, four hundred forty".