1311472732 has 12 divisors (see below), whose sum is σ = 2369112256. Its totient is φ = 634583520.

The previous prime is 1311472711. The next prime is 1311472753. The reversal of 1311472732 is 2372741131.

It is an interprime number because it is at equal distance from previous prime (1311472711) and next prime (1311472753).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1311472694 and 1311472703.

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 in 3 ways as a sum of consecutive naturals, for example, 5288073 + ... + 5288320.

Almost surely, 2^1311472732 is an apocalyptic number.

It is an amenable number.

1311472732 is a deficient number, since it is larger than the sum of its proper divisors (1057639524).

1311472732 is a wasteful number, since it uses less digits than its factorization.

1311472732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10576428 (or 10576426 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 1311472732 is about 36214.2614449059. The cubic root of 1311472732 is about 1094.5940634404.

The spelling of 1311472732 in words is "one billion, three hundred eleven million, four hundred seventy-two thousand, seven hundred thirty-two".