1315340775 has 72 divisors (see below), whose sum is σ = 2792293504. Its totient is φ = 601279200.

The previous prime is 1315340773. The next prime is 1315340783. The reversal of 1315340775 is 5770435131.

1315340775 is a `hidden beast` number, since 131 + 53 + 407 + 75 = 666.

It is not a de Polignac number, because 1315340775 - 2¹ = 1315340773 is a prime.

It is a super-3 number, since 3×1315340775³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315340771) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27060 + ... + 57990.

Almost surely, 2^1315340775 is an apocalyptic number.

1315340775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1315340775 is an abundant number, since it is smaller than the sum of its proper divisors (1476952729).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315340775 is an equidigital number, since it uses as much as digits as its factorization.

1315340775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30963 (or 30946 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 1315340775 is about 36267.6270935941. The cubic root of 1315340775 is about 1095.6691350247.

The spelling of 1315340775 in words is "one billion, three hundred fifteen million, three hundred forty thousand, seven hundred seventy-five".