1315541505 has 8 divisors (see below), whose sum is σ = 2104866432. Its totient is φ = 701622128.

The previous prime is 1315541489. The next prime is 1315541519. The reversal of 1315541505 is 5051455131.

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 1315541505 - 2⁴ = 1315541489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43851369 + ... + 43851398.

It is an arithmetic number, because the mean of its divisors is an integer number (263108304).

Almost surely, 2^1315541505 is an apocalyptic number.

1315541505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315541505 is a deficient number, since it is larger than the sum of its proper divisors (789324927).

1315541505 is an equidigital number, since it uses as much as digits as its factorization.

1315541505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87702775.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1315541505 is about 36270.3943320168. The cubic root of 1315541505 is about 1095.7248677248.

Adding to 1315541505 its reverse (5051455131), we get a palindrome (6366996636).

The spelling of 1315541505 in words is "one billion, three hundred fifteen million, five hundred forty-one thousand, five hundred five".