13285081 has 4 divisors (see below), whose sum is σ = 13713664. Its totient is φ = 12856500.

The previous prime is 13285079. The next prime is 13285091. The reversal of 13285081 is 18058231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13285081 - 2¹ = 13285079 is a prime.

It is a super-2 number, since 2×13285081² = 352986754353122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13285021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214245 + ... + 214306.

It is an arithmetic number, because the mean of its divisors is an integer number (3428416).

Almost surely, 2^13285081 is an apocalyptic number.

It is an amenable number.

13285081 is a deficient number, since it is larger than the sum of its proper divisors (428583).

13285081 is an equidigital number, since it uses as much as digits as its factorization.

13285081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428582.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 13285081 is about 3644.8705052443. The cubic root of 13285081 is about 236.8398272070.

The spelling of 13285081 in words is "thirteen million, two hundred eighty-five thousand, eighty-one".