140212042 has 16 divisors (see below), whose sum is σ = 217850400. Its totient is φ = 67601520.

The previous prime is 140212021. The next prime is 140212043. The reversal of 140212042 is 240212041.

It is not an unprimeable number, because it can be changed into a prime (140212043) 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, 88009 + ... + 89587.

It is an arithmetic number, because the mean of its divisors is an integer number (13615650).

Almost surely, 2^140212042 is an apocalyptic number.

140212042 is a deficient number, since it is larger than the sum of its proper divisors (77638358).

140212042 is a wasteful number, since it uses less digits than its factorization.

140212042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140212042 is about 11841.1165858630. The cubic root of 140212042 is about 519.5114271935.

Adding to 140212042 its reverse (240212041), we get a palindrome (380424083).

Subtracting 140212042 from its reverse (240212041), we obtain a palindrome (99999999).

The spelling of 140212042 in words is "one hundred forty million, two hundred twelve thousand, forty-two".