1318909607 has 4 divisors (see below), whose sum is σ = 1351078176. Its totient is φ = 1286741040.

The previous prime is 1318909597. The next prime is 1318909649. The reversal of 1318909607 is 7069098131.

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 1318909607 - 2¹⁰ = 1318908583 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 (1318909667) 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, 16084223 + ... + 16084304.

It is an arithmetic number, because the mean of its divisors is an integer number (337769544).

Almost surely, 2^1318909607 is an apocalyptic number.

1318909607 is a deficient number, since it is larger than the sum of its proper divisors (32168569).

1318909607 is an equidigital number, since it uses as much as digits as its factorization.

1318909607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32168568.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 1318909607 is about 36316.7951091503. The cubic root of 1318909607 is about 1096.6591770424.

The spelling of 1318909607 in words is "one billion, three hundred eighteen million, nine hundred nine thousand, six hundred seven".