13242315 has 16 divisors (see below), whose sum is σ = 21588768. Its totient is φ = 6928896.

The previous prime is 13242293. The next prime is 13242329. The reversal of 13242315 is 51324231.

It is not a de Polignac number, because 13242315 - 2¹⁴ = 13225931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13242291 and 13242300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7534 + ... + 9123.

It is an arithmetic number, because the mean of its divisors is an integer number (1349298).

Almost surely, 2^13242315 is an apocalyptic number.

13242315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13242315 is a deficient number, since it is larger than the sum of its proper divisors (8346453).

13242315 is a wasteful number, since it uses less digits than its factorization.

13242315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16718.

The product of its digits is 720, while the sum is 21.

The square root of 13242315 is about 3638.9991755976. Note that the first 3 decimals coincide. The cubic root of 13242315 is about 236.5854170168.

Adding to 13242315 its reverse (51324231), we get a palindrome (64566546).

The spelling of 13242315 in words is "thirteen million, two hundred forty-two thousand, three hundred fifteen".