1318216527 has 24 divisors (see below), whose sum is σ = 1968155280. Its totient is φ = 849732480.

The previous prime is 1318216519. The next prime is 1318216591. The reversal of 1318216527 is 7256128131.

1318216527 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1318216527 - 2³ = 1318216519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1318216491 and 1318216500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318216507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12043 + ... + 52739.

It is an arithmetic number, because the mean of its divisors is an integer number (82006470).

Almost surely, 2^1318216527 is an apocalyptic number.

1318216527 is a deficient number, since it is larger than the sum of its proper divisors (649938753).

1318216527 is a wasteful number, since it uses less digits than its factorization.

1318216527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40823 (or 40820 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 1318216527 is about 36307.2517136728. The cubic root of 1318216527 is about 1096.4670471912.

The spelling of 1318216527 in words is "one billion, three hundred eighteen million, two hundred sixteen thousand, five hundred twenty-seven".