140502317 has 8 divisors (see below), whose sum is σ = 145224576. Its totient is φ = 135852352.

The previous prime is 140502301. The next prime is 140502319. The reversal of 140502317 is 713205041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140502317 - 2⁴ = 140502301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140502292 and 140502301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140502319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14108 + ... + 21909.

It is an arithmetic number, because the mean of its divisors is an integer number (18153072).

Almost surely, 2^140502317 is an apocalyptic number.

It is an amenable number.

140502317 is a deficient number, since it is larger than the sum of its proper divisors (4722259).

140502317 is an equidigital number, since it uses as much as digits as its factorization.

140502317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36147.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 140502317 is about 11853.3673274728. The cubic root of 140502317 is about 519.8696875139.

Adding to 140502317 its reverse (713205041), we get a palindrome (853707358).

The spelling of 140502317 in words is "one hundred forty million, five hundred two thousand, three hundred seventeen".