1318960687 has 16 divisors (see below), whose sum is σ = 1505239200. Its totient is φ = 1144675840.

The previous prime is 1318960663. The next prime is 1318960697. The reversal of 1318960687 is 7860698131.

It is not a de Polignac number, because 1318960687 - 2¹⁵ = 1318927919 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1318960687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318960607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5163 + ... + 51619.

It is an arithmetic number, because the mean of its divisors is an integer number (94077450).

Almost surely, 2^1318960687 is an apocalyptic number.

1318960687 is a deficient number, since it is larger than the sum of its proper divisors (186278513).

1318960687 is a wasteful number, since it uses less digits than its factorization.

1318960687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46586.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1318960687 is about 36317.4983582295. The cubic root of 1318960687 is about 1096.6733343501.

The spelling of 1318960687 in words is "one billion, three hundred eighteen million, nine hundred sixty thousand, six hundred eighty-seven".