1315218 has 32 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 407376.

The previous prime is 1315213. The next prime is 1315229. The reversal of 1315218 is 8125131.

It is a junction number, because it is equal to n+sod(n) for n = 1315194 and 1315203.

It is not an unprimeable number, because it can be changed into a prime (1315211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9393 + ... + 9531.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2^1315218 is an apocalyptic number.

1315218 is an abundant number, since it is smaller than the sum of its proper divisors (1507182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315218 is a wasteful number, since it uses less digits than its factorization.

1315218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246.

The product of its digits is 240, while the sum is 21.

The square root of 1315218 is about 1146.8295426959. The cubic root of 1315218 is about 109.5635043742.

The spelling of 1315218 in words is "one million, three hundred fifteen thousand, two hundred eighteen".