3147157540217 has 2 divisors, whose sum is σ = 3147157540218. Its totient is φ = 3147157540216.

The previous prime is 3147157540211. The next prime is 3147157540243. The reversal of 3147157540217 is 7120457517413.

3147157540217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1855163857936 + 1291993682281 = 1362044^2 + 1136659^2 .

It is a cyclic number.

It is not a de Polignac number, because 3147157540217 - 2¹⁰ = 3147157539193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3147157540211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573578770108 + 1573578770109.

It is an arithmetic number, because the mean of its divisors is an integer number (1573578770109).

Almost surely, 2^{3147157540217} is an apocalyptic number.

It is an amenable number.

3147157540217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147157540217 is an equidigital number, since it uses as much as digits as its factorization.

3147157540217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 3147157540217 in words is "three trillion, one hundred forty-seven billion, one hundred fifty-seven million, five hundred forty thousand, two hundred seventeen".