140112142 has 16 divisors (see below), whose sum is σ = 213857280. Its totient is φ = 68831928.

The previous prime is 140112127. The next prime is 140112143. The reversal of 140112142 is 241211041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140112143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 61459 + ... + 63697.

It is an arithmetic number, because the mean of its divisors is an integer number (13366080).

Almost surely, 2^140112142 is an apocalyptic number.

140112142 is a deficient number, since it is larger than the sum of its proper divisors (73745138).

140112142 is a wasteful number, since it uses less digits than its factorization.

140112142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 140112142 is about 11836.8974820263. The cubic root of 140112142 is about 519.3880152486.

Adding to 140112142 its reverse (241211041), we get a palindrome (381323183).

The spelling of 140112142 in words is "one hundred forty million, one hundred twelve thousand, one hundred forty-two".