142012142 has 16 divisors (see below), whose sum is σ = 219710832. Its totient is φ = 68791680.

The previous prime is 142012139. The next prime is 142012181. The reversal of 142012142 is 241210241.

It is a self number, because there is not a number n which added to its sum of digits gives 142012142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13853 + ... + 21815.

It is an arithmetic number, because the mean of its divisors is an integer number (13731927).

Almost surely, 2^142012142 is an apocalyptic number.

142012142 is a deficient number, since it is larger than the sum of its proper divisors (77698690).

142012142 is a wasteful number, since it uses less digits than its factorization.

142012142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8243.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142012142 is about 11916.8847439253. The cubic root of 142012142 is about 521.7252141733.

Adding to 142012142 its reverse (241210241), we get a palindrome (383222383).

The spelling of 142012142 in words is "one hundred forty-two million, twelve thousand, one hundred forty-two".