1315506271 has 2 divisors, whose sum is σ = 1315506272. Its totient is φ = 1315506270.

The previous prime is 1315506253. The next prime is 1315506331. The reversal of 1315506271 is 1726055131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315506271 - 2⁵ = 1315506239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315500271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657753135 + 657753136.

It is an arithmetic number, because the mean of its divisors is an integer number (657753136).

Almost surely, 2^1315506271 is an apocalyptic number.

1315506271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315506271 is an equidigital number, since it uses as much as digits as its factorization.

1315506271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1315506271 is about 36269.9086158209. The cubic root of 1315506271 is about 1095.7150854122.

The spelling of 1315506271 in words is "one billion, three hundred fifteen million, five hundred six thousand, two hundred seventy-one".