140120042 has 8 divisors (see below), whose sum is σ = 215306532. Its totient is φ = 68351200.

The previous prime is 140120033. The next prime is 140120053. The reversal of 140120042 is 240021041.

140120042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 126585001 + 13535041 = 11251^2 + 3679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140119999 and 140120026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854309 + ... + 854472.

Almost surely, 2^140120042 is an apocalyptic number.

140120042 is a deficient number, since it is larger than the sum of its proper divisors (75186490).

140120042 is a wasteful number, since it uses less digits than its factorization.

140120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708824.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 140120042 is about 11837.2311796298. The cubic root of 140120042 is about 519.3977766872.

Adding to 140120042 its reverse (240021041), we get a palindrome (380141083).

Subtracting 140120042 from its reverse (240021041), we obtain a palindrome (99900999).

The spelling of 140120042 in words is "one hundred forty million, one hundred twenty thousand, forty-two".