1315388481 has 32 divisors (see below), whose sum is σ = 2037312000. Its totient is φ = 746062080.

The previous prime is 1315388453. The next prime is 1315388507. The reversal of 1315388481 is 1848835131.

It is not a de Polignac number, because 1315388481 - 2²² = 1311194177 is a prime.

It is a super-2 number, since 2×1315388481² = 3460493711894974722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315388441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93870 + ... + 106968.

It is an arithmetic number, because the mean of its divisors is an integer number (63666000).

Almost surely, 2^1315388481 is an apocalyptic number.

1315388481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1315388481 is a deficient number, since it is larger than the sum of its proper divisors (721923519).

1315388481 is a wasteful number, since it uses less digits than its factorization.

1315388481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13309.

The product of its digits is 92160, while the sum is 42.

The square root of 1315388481 is about 36268.2847816105. The cubic root of 1315388481 is about 1095.6823811129.

The spelling of 1315388481 in words is "one billion, three hundred fifteen million, three hundred eighty-eight thousand, four hundred eighty-one".