142521043155642 has 48 divisors (see below), whose sum is σ = 309015133775712. Its totient is φ = 47473246510560.

The previous prime is 142521043155641. The next prime is 142521043155643. The reversal of 142521043155642 is 246551340125241.

142521043155642 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 2 + 10 + 43 + 1 + 556 + 42 = 666.

142521043155642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142521043155641) and next prime (142521043155643).

It is not an unprimeable number, because it can be changed into a prime (142521043155641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229465792 + ... + 230086052.

It is an arithmetic number, because the mean of its divisors is an integer number (6437815286994).

Almost surely, 2^{142521043155642} is an apocalyptic number.

142521043155642 is an abundant number, since it is smaller than the sum of its proper divisors (166494090620070).

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

142521043155642 is a wasteful number, since it uses less digits than its factorization.

142521043155642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629323 (or 629320 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 142521043155642 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred fifty-five thousand, six hundred forty-two".