971315571 has 16 divisors (see below), whose sum is σ = 1314724608. Its totient is φ = 637744800.

The previous prime is 971315567. The next prime is 971315573. The reversal of 971315571 is 175513179.

It is not a de Polignac number, because 971315571 - 2² = 971315567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (971315573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270216 + ... + 273786.

It is an arithmetic number, because the mean of its divisors is an integer number (82170288).

Almost surely, 2^971315571 is an apocalyptic number.

971315571 is a deficient number, since it is larger than the sum of its proper divisors (343409037).

971315571 is a wasteful number, since it uses less digits than its factorization.

971315571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922.

The product of its digits is 33075, while the sum is 39.

The square root of 971315571 is about 31165.9360680856. The cubic root of 971315571 is about 990.3456164983.

The spelling of 971315571 in words is "nine hundred seventy-one million, three hundred fifteen thousand, five hundred seventy-one".