140041042 has 4 divisors (see below), whose sum is σ = 210061566. Its totient is φ = 70020520.

The previous prime is 140041007. The next prime is 140041049. The reversal of 140041042 is 240140041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240140041 = 907 ⋅264763.

It can be written as a sum of positive squares in only one way, i.e., 92140801 + 47900241 = 9599^2 + 6921^2 .

It is a super-2 number, since 2×140041042² = 39222986888891528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140041049) 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 as a sum of consecutive naturals, namely, 35010259 + ... + 35010262.

Almost surely, 2^140041042 is an apocalyptic number.

140041042 is a deficient number, since it is larger than the sum of its proper divisors (70020524).

140041042 is an equidigital number, since it uses as much as digits as its factorization.

140041042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70020523.

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

The square root of 140041042 is about 11833.8937801554. The cubic root of 140041042 is about 519.3001457854.

Adding to 140041042 its reverse (240140041), we get a palindrome (380181083).

The spelling of 140041042 in words is "one hundred forty million, forty-one thousand, forty-two".