1318886407 has 2 divisors, whose sum is σ = 1318886408. Its totient is φ = 1318886406.

The previous prime is 1318886363. The next prime is 1318886417. The reversal of 1318886407 is 7046888131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1318886407 is a prime.

It is a super-2 number, since 2×1318886407² = 3478922709138739298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318886417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659443203 + 659443204.

It is an arithmetic number, because the mean of its divisors is an integer number (659443204).

Almost surely, 2^1318886407 is an apocalyptic number.

1318886407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318886407 is an equidigital number, since it uses as much as digits as its factorization.

1318886407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 1318886407 is about 36316.4756963007. The cubic root of 1318886407 is about 1096.6527468210.

The spelling of 1318886407 in words is "one billion, three hundred eighteen million, eight hundred eighty-six thousand, four hundred seven".