13215085 has 8 divisors (see below), whose sum is σ = 17078040. Its totient is φ = 9758784.

The previous prime is 13215053. The next prime is 13215091. The reversal of 13215085 is 58051231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 276676 + 12938409 = 526^2 + 3597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13215085 - 2⁵ = 13215053 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 101590 + ... + 101719.

It is an arithmetic number, because the mean of its divisors is an integer number (2134755).

Almost surely, 2^13215085 is an apocalyptic number.

It is an amenable number.

13215085 is a deficient number, since it is larger than the sum of its proper divisors (3862955).

13215085 is a wasteful number, since it uses less digits than its factorization.

13215085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203327.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13215085 is about 3635.2558369391. The cubic root of 13215085 is about 236.4231432341.

The spelling of 13215085 in words is "thirteen million, two hundred fifteen thousand, eighty-five".