142453312452 has 144 divisors (see below), whose sum is σ = 407680116480. Its totient is φ = 41544921600.

The previous prime is 142453312439. The next prime is 142453312453. The reversal of 142453312452 is 254213354241.

It is a happy number.

142453312452 is a `hidden beast` number, since 1 + 42 + 45 + 331 + 245 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (142453312453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3574677 + ... + 3614307.

It is an arithmetic number, because the mean of its divisors is an integer number (2831111920).

Almost surely, 2^142453312452 is an apocalyptic number.

142453312452 is a gapful number since it is divisible by the number (12) 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 142453312452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203840058240).

142453312452 is an abundant number, since it is smaller than the sum of its proper divisors (265226804028).

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

142453312452 is a wasteful number, since it uses less digits than its factorization.

142453312452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39994 (or 39989 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 142453312452 its reverse (254213354241), we get a palindrome (396666666693).

The spelling of 142453312452 in words is "one hundred forty-two billion, four hundred fifty-three million, three hundred twelve thousand, four hundred fifty-two".