140316647 has 4 divisors (see below), whose sum is σ = 140476440. Its totient is φ = 140156856.

The previous prime is 140316643. The next prime is 140316679. The reversal of 140316647 is 746613041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746613041 = 7129 ⋅104729.

It is a cyclic number.

It is not a de Polignac number, because 140316647 - 2² = 140316643 is a prime.

It is a super-2 number, since 2×140316647² = 39377522850645218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140316643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78572 + ... + 80337.

It is an arithmetic number, because the mean of its divisors is an integer number (35119110).

Almost surely, 2^140316647 is an apocalyptic number.

140316647 is a deficient number, since it is larger than the sum of its proper divisors (159793).

140316647 is an equidigital number, since it uses as much as digits as its factorization.

140316647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159792.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 140316647 is about 11845.5327866669. The cubic root of 140316647 is about 519.6405886724.

Adding to 140316647 its reverse (746613041), we get a palindrome (886929688).

The spelling of 140316647 in words is "one hundred forty million, three hundred sixteen thousand, six hundred forty-seven".