1323215 has 4 divisors (see below), whose sum is σ = 1587864. Its totient is φ = 1058568.

The previous prime is 1323199. The next prime is 1323221. The reversal of 1323215 is 5123231.

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 1323215 - 2⁴ = 1323199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323193 and 1323202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132317 + ... + 132326.

It is an arithmetic number, because the mean of its divisors is an integer number (396966).

2^1323215 is an apocalyptic number.

1323215 is a deficient number, since it is larger than the sum of its proper divisors (264649).

1323215 is an equidigital number, since it uses as much as digits as its factorization.

1323215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264648.

The product of its digits is 180, while the sum is 17.

The square root of 1323215 is about 1150.3108275592. The cubic root of 1323215 is about 109.7851176961.

Adding to 1323215 its reverse (5123231), we get a palindrome (6446446).

The spelling of 1323215 in words is "one million, three hundred twenty-three thousand, two hundred fifteen".