1311463851 has 8 divisors (see below), whose sum is σ = 1749832704. Its totient is φ = 873702120.

The previous prime is 1311463831. The next prime is 1311463871. The reversal of 1311463851 is 1583641131.

It is an interprime number because it is at equal distance from previous prime (1311463831) and next prime (1311463871).

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

It is not a de Polignac number, because 1311463851 - 2⁵ = 1311463819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311463801) 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 7 ways as a sum of consecutive naturals, for example, 146715 + ... + 155396.

It is an arithmetic number, because the mean of its divisors is an integer number (218729088).

Almost surely, 2^1311463851 is an apocalyptic number.

1311463851 is a deficient number, since it is larger than the sum of its proper divisors (438368853).

1311463851 is a wasteful number, since it uses less digits than its factorization.

1311463851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303561.

The product of its digits is 8640, while the sum is 33.

The square root of 1311463851 is about 36214.1388272592. The cubic root of 1311463851 is about 1094.5915926528.

The spelling of 1311463851 in words is "one billion, three hundred eleven million, four hundred sixty-three thousand, eight hundred fifty-one".