140938706 has 4 divisors (see below), whose sum is σ = 211408062. Its totient is φ = 70469352.

The previous prime is 140938697. The next prime is 140938739. The reversal of 140938706 is 607839041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607839041 = 31 ⋅19607711.

It can be written as a sum of positive squares in only one way, i.e., 136773025 + 4165681 = 11695^2 + 2041^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140938706.

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 as a sum of consecutive naturals, namely, 35234675 + ... + 35234678.

Almost surely, 2^140938706 is an apocalyptic number.

140938706 is a deficient number, since it is larger than the sum of its proper divisors (70469356).

140938706 is an equidigital number, since it uses as much as digits as its factorization.

140938706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70469355.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 140938706 is about 11871.7608634945. The cubic root of 140938706 is about 520.4073558529.

The spelling of 140938706 in words is "one hundred forty million, nine hundred thirty-eight thousand, seven hundred six".