1315219 has 4 divisors (see below), whose sum is σ = 1319760. Its totient is φ = 1310680.

The previous prime is 1315213. The next prime is 1315229. The reversal of 1315219 is 9125131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1315219 - 2³ = 1315211 is a prime.

It is a super-2 number, since 2×1315219² = 3459602035922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

1315219 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315219.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (329940).

2^1315219 is an apocalyptic number.

1315219 is a deficient number, since it is larger than the sum of its proper divisors (4541).

1315219 is an equidigital number, since it uses as much as digits as its factorization.

1315219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540.

The product of its digits is 270, while the sum is 22.

The square root of 1315219 is about 1146.8299786804. The cubic root of 1315219 is about 109.5635321423.

The spelling of 1315219 in words is "one million, three hundred fifteen thousand, two hundred nineteen".