1318387135 has 16 divisors (see below), whose sum is σ = 1704711456. Its totient is φ = 973035648.

The previous prime is 1318387129. The next prime is 1318387141. The reversal of 1318387135 is 5317838131.

It is an interprime number because it is at equal distance from previous prime (1318387129) and next prime (1318387141).

It is not a de Polignac number, because 1318387135 - 2¹¹ = 1318385087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140872 + ... + 149938.

It is an arithmetic number, because the mean of its divisors is an integer number (106544466).

Almost surely, 2^1318387135 is an apocalyptic number.

1318387135 is a deficient number, since it is larger than the sum of its proper divisors (386324321).

1318387135 is a wasteful number, since it uses less digits than its factorization.

1318387135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322.

The product of its digits is 60480, while the sum is 40.

The square root of 1318387135 is about 36309.6011407451. The cubic root of 1318387135 is about 1096.5143479638.

The spelling of 1318387135 in words is "one billion, three hundred eighteen million, three hundred eighty-seven thousand, one hundred thirty-five".