1338215 has 4 divisors (see below), whose sum is σ = 1605864. Its totient is φ = 1070568.

The previous prime is 1338167. The next prime is 1338217. The reversal of 1338215 is 5128331.

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 1338215 - 2¹² = 1334119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338217) 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, 133817 + ... + 133826.

It is an arithmetic number, because the mean of its divisors is an integer number (401466).

2^1338215 is an apocalyptic number.

1338215 is a deficient number, since it is larger than the sum of its proper divisors (267649).

1338215 is an equidigital number, since it uses as much as digits as its factorization.

1338215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267648.

The product of its digits is 720, while the sum is 23.

The square root of 1338215 is about 1156.8124307769. The cubic root of 1338215 is about 110.1984022658.

The spelling of 1338215 in words is "one million, three hundred thirty-eight thousand, two hundred fifteen".