1318340359 has 4 divisors (see below), whose sum is σ = 1506674704. Its totient is φ = 1130006016.

The previous prime is 1318340341. The next prime is 1318340369. The reversal of 1318340359 is 9530438131.

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 1318340359 - 2¹⁷ = 1318209287 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 (1318340339) 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, 94167162 + ... + 94167175.

It is an arithmetic number, because the mean of its divisors is an integer number (376668676).

Almost surely, 2^1318340359 is an apocalyptic number.

1318340359 is a deficient number, since it is larger than the sum of its proper divisors (188334345).

1318340359 is an equidigital number, since it uses as much as digits as its factorization.

1318340359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188334344.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1318340359 is about 36308.9570078789. The cubic root of 1318340359 is about 1096.5013798048.

The spelling of 1318340359 in words is "one billion, three hundred eighteen million, three hundred forty thousand, three hundred fifty-nine".