1318918607 has 4 divisors (see below), whose sum is σ = 1319049480. Its totient is φ = 1318787736.

The previous prime is 1318918577. The next prime is 1318918609. The reversal of 1318918607 is 7068198131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1318918607 - 2⁶ = 1318918543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318918609) 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, 48932 + ... + 70937.

It is an arithmetic number, because the mean of its divisors is an integer number (329762370).

Almost surely, 2^1318918607 is an apocalyptic number.

1318918607 is a deficient number, since it is larger than the sum of its proper divisors (130873).

1318918607 is a wasteful number, since it uses less digits than its factorization.

1318918607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130872.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1318918607 is about 36316.9190185511. The cubic root of 1318918607 is about 1096.6616715045.

The spelling of 1318918607 in words is "one billion, three hundred eighteen million, nine hundred eighteen thousand, six hundred seven".