1311129464 has 8 divisors (see below), whose sum is σ = 2458367760. Its totient is φ = 655564728.

The previous prime is 1311129439. The next prime is 1311129473. The reversal of 1311129464 is 4649211131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1311129464.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 81945584 + ... + 81945599.

It is an arithmetic number, because the mean of its divisors is an integer number (307295970).

Almost surely, 2^1311129464 is an apocalyptic number.

It is an amenable number.

1311129464 is a deficient number, since it is larger than the sum of its proper divisors (1147238296).

1311129464 is a wasteful number, since it uses less digits than its factorization.

1311129464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163891189 (or 163891185 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 1311129464 is about 36209.5217311690. The cubic root of 1311129464 is about 1094.4985545536.

The spelling of 1311129464 in words is "one billion, three hundred eleven million, one hundred twenty-nine thousand, four hundred sixty-four".