1318814747 has 4 divisors (see below), whose sum is σ = 1318943976. Its totient is φ = 1318685520.

The previous prime is 1318814737. The next prime is 1318814767. The reversal of 1318814747 is 7474188131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7474188131 = 1699 ⋅4399169.

It is a cyclic number.

It is not a de Polignac number, because 1318814747 - 2⁶ = 1318814683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1318814698 and 1318814707.

It is not an unprimeable number, because it can be changed into a prime (1318814737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47858 + ... + 70199.

It is an arithmetic number, because the mean of its divisors is an integer number (329735994).

Almost surely, 2^1318814747 is an apocalyptic number.

1318814747 is a deficient number, since it is larger than the sum of its proper divisors (129229).

1318814747 is a wasteful number, since it uses less digits than its factorization.

1318814747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129228.

The product of its digits is 150528, while the sum is 44.

The square root of 1318814747 is about 36315.4890783533. The cubic root of 1318814747 is about 1096.6328847215.

The spelling of 1318814747 in words is "one billion, three hundred eighteen million, eight hundred fourteen thousand, seven hundred forty-seven".