140315617 has 8 divisors (see below), whose sum is σ = 157679424. Its totient is φ = 123890448.

The previous prime is 140315597. The next prime is 140315639. The reversal of 140315617 is 716513041.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140315617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140315687) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 234343 + ... + 234940.

It is an arithmetic number, because the mean of its divisors is an integer number (19709928).

Almost surely, 2^140315617 is an apocalyptic number.

It is an amenable number.

140315617 is a deficient number, since it is larger than the sum of its proper divisors (17363807).

140315617 is a wasteful number, since it uses less digits than its factorization.

140315617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469319.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 140315617 is about 11845.4893102818. The cubic root of 140315617 is about 519.6393171884.

Adding to 140315617 its reverse (716513041), we get a palindrome (856828658).

It can be divided in two parts, 1403 and 15617, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 140315617 in words is "one hundred forty million, three hundred fifteen thousand, six hundred seventeen".