140353042 has 4 divisors (see below), whose sum is σ = 210529566. Its totient is φ = 70176520.

The previous prime is 140353033. The next prime is 140353043. The reversal of 140353042 is 240353041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240353041 = 15277 ⋅15733.

It can be written as a sum of positive squares in only one way, i.e., 122788561 + 17564481 = 11081^2 + 4191^2 .

It is not an unprimeable number, because it can be changed into a prime (140353043) 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, 35088259 + ... + 35088262.

Almost surely, 2^140353042 is an apocalyptic number.

140353042 is a deficient number, since it is larger than the sum of its proper divisors (70176524).

140353042 is an equidigital number, since it uses as much as digits as its factorization.

140353042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70176523.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 140353042 is about 11847.0689202013. The cubic root of 140353042 is about 519.6855125042.

Subtracting 140353042 from its reverse (240353041), we obtain a palindrome (99999999).

It can be divided in two parts, 1403 and 53042, that added together give a palindrome (54445).

The spelling of 140353042 in words is "one hundred forty million, three hundred fifty-three thousand, forty-two".