1315538971 has 8 divisors (see below), whose sum is σ = 1359535104. Its totient is φ = 1271640360.

The previous prime is 1315538923. The next prime is 1315539013. The reversal of 1315538971 is 1798355131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1315538971 - 2¹³ = 1315530779 is a prime.

It is a super-3 number, since 3×1315538971³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315538671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3576 + ... + 51418.

It is an arithmetic number, because the mean of its divisors is an integer number (169941888).

Almost surely, 2^1315538971 is an apocalyptic number.

1315538971 is a deficient number, since it is larger than the sum of its proper divisors (43996133).

1315538971 is an equidigital number, since it uses as much as digits as its factorization.

1315538971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48761.

The product of its digits is 113400, while the sum is 43.

The square root of 1315538971 is about 36270.3593999288. The cubic root of 1315538971 is about 1095.7241641948.

The spelling of 1315538971 in words is "one billion, three hundred fifteen million, five hundred thirty-eight thousand, nine hundred seventy-one".