1318518364 has 12 divisors (see below), whose sum is σ = 2308434688. Its totient is φ = 658965600.

The previous prime is 1318518361. The next prime is 1318518367. The reversal of 1318518364 is 4638158131.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1318518361) and next prime (1318518367).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318518361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63132 + ... + 81379.

Almost surely, 2^1318518364 is an apocalyptic number.

It is an amenable number.

1318518364 is a deficient number, since it is larger than the sum of its proper divisors (989916324).

1318518364 is a wasteful number, since it uses less digits than its factorization.

1318518364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146796 (or 146794 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 1318518364 is about 36311.4081797994. The cubic root of 1318518364 is about 1096.5507282003.

The spelling of 1318518364 in words is "one billion, three hundred eighteen million, five hundred eighteen thousand, three hundred sixty-four".