15481085 has 4 divisors (see below), whose sum is σ = 18577308. Its totient is φ = 12384864.

The previous prime is 15481073. The next prime is 15481153. The reversal of 15481085 is 58018451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9897316 + 5583769 = 3146^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 15481085 - 2⁶ = 15481021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548104 + ... + 1548113.

It is an arithmetic number, because the mean of its divisors is an integer number (4644327).

Almost surely, 2^15481085 is an apocalyptic number.

It is an amenable number.

15481085 is a deficient number, since it is larger than the sum of its proper divisors (3096223).

15481085 is an equidigital number, since it uses as much as digits as its factorization.

15481085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096222.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 15481085 is about 3934.6009962892. The cubic root of 15481085 is about 249.2300846890.

The spelling of 15481085 in words is "fifteen million, four hundred eighty-one thousand, eighty-five".