142284542 has 16 divisors (see below), whose sum is σ = 218738880. Its totient is φ = 69387552.

The previous prime is 142284539. The next prime is 142284551. The reversal of 142284542 is 245482241.

It is a junction number, because it is equal to n+sod(n) for n = 142284499 and 142284508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14459 + ... + 22217.

It is an arithmetic number, because the mean of its divisors is an integer number (13671180).

Almost surely, 2^142284542 is an apocalyptic number.

142284542 is a deficient number, since it is larger than the sum of its proper divisors (76454338).

142284542 is a wasteful number, since it uses less digits than its factorization.

142284542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987.

The product of its digits is 20480, while the sum is 32.

The square root of 142284542 is about 11928.3084299493. The cubic root of 142284542 is about 522.0585827980.

The spelling of 142284542 in words is "one hundred forty-two million, two hundred eighty-four thousand, five hundred forty-two".