142112642 has 48 divisors (see below), whose sum is σ = 257086872. Its totient is φ = 58705920.

The previous prime is 142112629. The next prime is 142112657. The reversal of 142112642 is 246211241.

It can be written as a sum of positive squares in 4 ways, for example, as 6599761 + 135512881 = 2569^2 + 11641^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 453878 + ... + 454190.

Almost surely, 2^142112642 is an apocalyptic number.

142112642 is a deficient number, since it is larger than the sum of its proper divisors (114974230).

142112642 is a wasteful number, since it uses less digits than its factorization.

142112642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 476 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 142112642 is about 11921.1007042135. The cubic root of 142112642 is about 521.8482576900.

Adding to 142112642 its reverse (246211241), we get a palindrome (388323883).

The spelling of 142112642 in words is "one hundred forty-two million, one hundred twelve thousand, six hundred forty-two".