140242034 has 4 divisors (see below), whose sum is σ = 210363054. Its totient is φ = 70121016.

The previous prime is 140242033. The next prime is 140242087. The reversal of 140242034 is 430242041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430242041 = 67 ⋅6421523.

It can be written as a sum of positive squares in only one way, i.e., 139310809 + 931225 = 11803^2 + 965^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140241997 and 140242015.

It is not an unprimeable number, because it can be changed into a prime (140242033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060507 + ... + 35060510.

Almost surely, 2^140242034 is an apocalyptic number.

140242034 is a deficient number, since it is larger than the sum of its proper divisors (70121020).

140242034 is an equidigital number, since it uses as much as digits as its factorization.

140242034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70121019.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 140242034 is about 11842.3829527676. The cubic root of 140242034 is about 519.5484665130.

Adding to 140242034 its reverse (430242041), we get a palindrome (570484075).

The spelling of 140242034 in words is "one hundred forty million, two hundred forty-two thousand, thirty-four".