1311463005 has 16 divisors (see below), whose sum is σ = 2137933440. Its totient is φ = 686249408.

The previous prime is 1311463001. The next prime is 1311463009. The reversal of 1311463005 is 5003641131.

It is an interprime number because it is at equal distance from previous prime (1311463001) and next prime (1311463009).

It is a cyclic number.

It is not a de Polignac number, because 1311463005 - 2² = 1311463001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311463001) 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, 824025 + ... + 825614.

It is an arithmetic number, because the mean of its divisors is an integer number (133620840).

Almost surely, 2^1311463005 is an apocalyptic number.

1311463005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311463005 is a deficient number, since it is larger than the sum of its proper divisors (826470435).

1311463005 is a wasteful number, since it uses less digits than its factorization.

1311463005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649700.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1311463005 is about 36214.1271467365. The cubic root of 1311463005 is about 1094.5913572861.

The spelling of 1311463005 in words is "one billion, three hundred eleven million, four hundred sixty-three thousand, five".