15000085 has 4 divisors (see below), whose sum is σ = 18000108. Its totient is φ = 12000064.

The previous prime is 15000079. The next prime is 15000127. The reversal of 15000085 is 58000051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58000051 = 547 ⋅106033.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 11336689 = 1914^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 15000085 - 2⁵ = 15000053 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1500004 + ... + 1500013.

It is an arithmetic number, because the mean of its divisors is an integer number (4500027).

Almost surely, 2^15000085 is an apocalyptic number.

It is an amenable number.

15000085 is a deficient number, since it is larger than the sum of its proper divisors (3000023).

15000085 is an equidigital number, since it uses as much as digits as its factorization.

15000085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000022.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 15000085 is about 3872.9943196447. The cubic root of 15000085 is about 246.6216732722.

The spelling of 15000085 in words is "fifteen million, eighty-five", and thus it is an aban number and an uban number.