142875438 has 16 divisors (see below), whose sum is σ = 288962640. Its totient is φ = 47089856.

The previous prime is 142875419. The next prime is 142875451. The reversal of 142875438 is 834578241.

It is a self number, because there is not a number n which added to its sum of digits gives 142875438.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 133245 + ... + 134312.

It is an arithmetic number, because the mean of its divisors is an integer number (18060165).

Almost surely, 2^142875438 is an apocalyptic number.

142875438 is an abundant number, since it is smaller than the sum of its proper divisors (146087202).

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

142875438 is a wasteful number, since it uses less digits than its factorization.

142875438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267651.

The product of its digits is 215040, while the sum is 42.

The square root of 142875438 is about 11953.0514095774. The cubic root of 142875438 is about 522.7802734624.

The spelling of 142875438 in words is "one hundred forty-two million, eight hundred seventy-five thousand, four hundred thirty-eight".