142136042 has 16 divisors (see below), whose sum is σ = 215115264. Its totient is φ = 70434000.

The previous prime is 142136041. The next prime is 142136051. The reversal of 142136042 is 240631241.

142136042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142135999 and 142136017.

It is not an unprimeable number, because it can be changed into a prime (142136041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155567 + ... + 156477.

It is an arithmetic number, because the mean of its divisors is an integer number (13444704).

Almost surely, 2^142136042 is an apocalyptic number.

142136042 is a deficient number, since it is larger than the sum of its proper divisors (72979222).

142136042 is a wasteful number, since it uses less digits than its factorization.

142136042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 142136042 is about 11922.0821168116. The cubic root of 142136042 is about 521.8768983019.

Adding to 142136042 its reverse (240631241), we get a palindrome (382767283).

The spelling of 142136042 in words is "one hundred forty-two million, one hundred thirty-six thousand, forty-two".