140105842 has 8 divisors (see below), whose sum is σ = 210487536. Its totient is φ = 69943332.

The previous prime is 140105783. The next prime is 140105879. The reversal of 140105842 is 248501041.

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

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 3 ways as a sum of consecutive naturals, for example, 53188 + ... + 55759.

It is an arithmetic number, because the mean of its divisors is an integer number (26310942).

Almost surely, 2^140105842 is an apocalyptic number.

140105842 is a deficient number, since it is larger than the sum of its proper divisors (70381694).

140105842 is a wasteful number, since it uses less digits than its factorization.

140105842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109592.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 140105842 is about 11836.6313620050. The cubic root of 140105842 is about 519.3802305473.

Adding to 140105842 its reverse (248501041), we get a palindrome (388606883).

The spelling of 140105842 in words is "one hundred forty million, one hundred five thousand, eight hundred forty-two".