13285715 has 4 divisors (see below), whose sum is σ = 15942864. Its totient is φ = 10628568.

The previous prime is 13285711. The next prime is 13285717. The reversal of 13285715 is 51758231.

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 13285715 - 2² = 13285711 is a prime.

It is a super-2 number, since 2×13285715² = 353020446122450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13285711) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1328567 + ... + 1328576.

It is an arithmetic number, because the mean of its divisors is an integer number (3985716).

Almost surely, 2^13285715 is an apocalyptic number.

13285715 is a deficient number, since it is larger than the sum of its proper divisors (2657149).

13285715 is an equidigital number, since it uses as much as digits as its factorization.

13285715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657148.

The product of its digits is 8400, while the sum is 32.

The square root of 13285715 is about 3644.9574757465. The cubic root of 13285715 is about 236.8435946928.

The spelling of 13285715 in words is "thirteen million, two hundred eighty-five thousand, seven hundred fifteen".