13282581 has 8 divisors (see below), whose sum is σ = 19072480. Its totient is φ = 8173872.

The previous prime is 13282579. The next prime is 13282583. The reversal of 13282581 is 18528231.

13282581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13282579) and next prime (13282583).

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

It is not a de Polignac number, because 13282581 - 2¹ = 13282579 is a prime.

It is a super-2 number, since 2×13282581² = 352853916043122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13282583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170251 + ... + 170328.

It is an arithmetic number, because the mean of its divisors is an integer number (2384060).

Almost surely, 2^13282581 is an apocalyptic number.

It is an amenable number.

13282581 is a deficient number, since it is larger than the sum of its proper divisors (5789899).

13282581 is a wasteful number, since it uses less digits than its factorization.

13282581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340595.

The product of its digits is 3840, while the sum is 30.

The square root of 13282581 is about 3644.5275413968. The cubic root of 13282581 is about 236.8249700222.

The spelling of 13282581 in words is "thirteen million, two hundred eighty-two thousand, five hundred eighty-one".