1318838207 has 2 divisors, whose sum is σ = 1318838208. Its totient is φ = 1318838206.

The previous prime is 1318838201. The next prime is 1318838263. The reversal of 1318838207 is 7028388131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1318838207 - 2¹⁰ = 1318837183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318838201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659419103 + 659419104.

It is an arithmetic number, because the mean of its divisors is an integer number (659419104).

Almost surely, 2^1318838207 is an apocalyptic number.

1318838207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318838207 is an equidigital number, since it uses as much as digits as its factorization.

1318838207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1318838207 is about 36315.8120795887. The cubic root of 1318838207 is about 1096.6393872408.

The spelling of 1318838207 in words is "one billion, three hundred eighteen million, eight hundred thirty-eight thousand, two hundred seven".