315047521219 has 2 divisors, whose sum is σ = 315047521220. Its totient is φ = 315047521218.

The previous prime is 315047521213. The next prime is 315047521307. The reversal of 315047521219 is 912125740513.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315047521219 is a prime.

It is a super-2 number, since 2×315047521219² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315047521213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157523760609 + 157523760610.

It is an arithmetic number, because the mean of its divisors is an integer number (157523760610).

Almost surely, 2^315047521219 is an apocalyptic number.

315047521219 is a deficient number, since it is larger than the sum of its proper divisors (1).

315047521219 is an equidigital number, since it uses as much as digits as its factorization.

315047521219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 315047521219 in words is "three hundred fifteen billion, forty-seven million, five hundred twenty-one thousand, two hundred nineteen".