142123435452 has 18 divisors (see below), whose sum is σ = 359256461928. Its totient is φ = 47374478472.

The previous prime is 142123435379. The next prime is 142123435453. The reversal of 142123435452 is 254534321241.

It is a happy number.

142123435452 is a `hidden beast` number, since 1 + 4 + 21 + 234 + 354 + 52 = 666.

142123435452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3947873207 = 142123435452 / (1 + 4 + 2 + 1 + 2 + 3 + 4 + 3 + 5 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142123435453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1973936568 + ... + 1973936639.

Almost surely, 2^142123435452 is an apocalyptic number.

142123435452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142123435452 is an abundant number, since it is smaller than the sum of its proper divisors (217133026476).

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

142123435452 is a wasteful number, since it uses less digits than its factorization.

142123435452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947873217 (or 3947873212 counting only the distinct ones).

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

Adding to 142123435452 its reverse (254534321241), we get a palindrome (396657756693).

The spelling of 142123435452 in words is "one hundred forty-two billion, one hundred twenty-three million, four hundred thirty-five thousand, four hundred fifty-two".