140118317 has 4 divisors (see below), whose sum is σ = 142037820. Its totient is φ = 138198816.

The previous prime is 140118313. The next prime is 140118337. The reversal of 140118317 is 713811041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713811041 = 2237 ⋅319093.

It can be written as a sum of positive squares in 2 ways, for example, as 33016516 + 107101801 = 5746^2 + 10349^2 .

It is a cyclic number.

It is not a de Polignac number, because 140118317 - 2² = 140118313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140118313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959642 + ... + 959787.

It is an arithmetic number, because the mean of its divisors is an integer number (35509455).

Almost surely, 2^140118317 is an apocalyptic number.

It is an amenable number.

140118317 is a deficient number, since it is larger than the sum of its proper divisors (1919503).

140118317 is an equidigital number, since it uses as much as digits as its factorization.

140118317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919502.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 140118317 is about 11837.1583160825. The cubic root of 140118317 is about 519.3956452652.

Adding to 140118317 its reverse (713811041), we get a palindrome (853929358).

The spelling of 140118317 in words is "one hundred forty million, one hundred eighteen thousand, three hundred seventeen".