1320315 has 32 divisors (see below), whose sum is σ = 2280960. Its totient is φ = 650496.

The previous prime is 1320307. The next prime is 1320331. The reversal of 1320315 is 5130231.

1320315 = T₂₂₆ + T₂₂₇ + ... + T₂₆₈.

It is a happy number.

It is not a de Polignac number, because 1320315 - 2³ = 1320307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1320294 and 1320303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14791 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2^1320315 is an apocalyptic number.

1320315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1320315 is a deficient number, since it is larger than the sum of its proper divisors (960645).

1320315 is a wasteful number, since it uses less digits than its factorization.

1320315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1320315 is about 1149.0496072842. The cubic root of 1320315 is about 109.7048561833.

Adding to 1320315 its reverse (5130231), we get a palindrome (6450546).

The spelling of 1320315 in words is "one million, three hundred twenty thousand, three hundred fifteen".