13620315 has 32 divisors (see below), whose sum is σ = 23832576. Its totient is φ = 6612480.

The previous prime is 13620287. The next prime is 13620317. The reversal of 13620315 is 51302631.

It is not a de Polignac number, because 13620315 - 2⁸ = 13620059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13620291 and 13620300.

It is not an unprimeable number, because it can be changed into a prime (13620317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7044 + ... + 8766.

It is an arithmetic number, because the mean of its divisors is an integer number (744768).

Almost surely, 2^13620315 is an apocalyptic number.

13620315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13620315 is a deficient number, since it is larger than the sum of its proper divisors (10212261).

13620315 is a wasteful number, since it uses less digits than its factorization.

13620315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13620315 is about 3690.5710940178. The cubic root of 13620315 is about 238.8154302911.

Adding to 13620315 its reverse (51302631), we get a palindrome (64922946).

The spelling of 13620315 in words is "thirteen million, six hundred twenty thousand, three hundred fifteen".