315540011617 has 2 divisors, whose sum is σ = 315540011618. Its totient is φ = 315540011616.

The previous prime is 315540011609. The next prime is 315540011663. The reversal of 315540011617 is 716110045513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297942397281 + 17597614336 = 545841^2 + 132656^2 .

It is an emirp because it is prime and its reverse (716110045513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315540011617 - 2³ = 315540011609 is a prime.

It is not a weakly prime, because it can be changed into another prime (315540018617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157770005808 + 157770005809.

It is an arithmetic number, because the mean of its divisors is an integer number (157770005809).

Almost surely, 2^315540011617 is an apocalyptic number.

It is an amenable number.

315540011617 is a deficient number, since it is larger than the sum of its proper divisors (1).

315540011617 is an equidigital number, since it uses as much as digits as its factorization.

315540011617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 315540011617 in words is "three hundred fifteen billion, five hundred forty million, eleven thousand, six hundred seventeen".