1318145 has 8 divisors (see below), whose sum is σ = 1596456. Its totient is φ = 1044736.

The previous prime is 1318139. The next prime is 1318147. The reversal of 1318145 is 5418131.

It can be written as a sum of positive squares in 4 ways, for example, as 9409 + 1308736 = 97^2 + 1144^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1318145 - 2¹⁴ = 1301761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1318145.

It is not an unprimeable number, because it can be changed into a prime (1318147) 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 7 ways as a sum of consecutive naturals, for example, 602 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (199557).

2^1318145 is an apocalyptic number.

It is an amenable number.

1318145 is a deficient number, since it is larger than the sum of its proper divisors (278311).

1318145 is a wasteful number, since it uses less digits than its factorization.

1318145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451.

The product of its digits is 480, while the sum is 23.

The square root of 1318145 is about 1148.1049603586. The cubic root of 1318145 is about 109.6447215240.

The spelling of 1318145 in words is "one million, three hundred eighteen thousand, one hundred forty-five".