13121682 has 32 divisors (see below), whose sum is σ = 30446592. Its totient is φ = 3692304.

The previous prime is 13121657. The next prime is 13121683. The reversal of 13121682 is 28612131.

It is not an unprimeable number, because it can be changed into a prime (13121683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (951456).

Almost surely, 2^13121682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13121682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15223296).

13121682 is an abundant number, since it is smaller than the sum of its proper divisors (17324910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121682 is a wasteful number, since it uses less digits than its factorization.

13121682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742.

The product of its digits is 576, while the sum is 24.

The square root of 13121682 is about 3622.3862300975. The cubic root of 13121682 is about 235.8648201233.

The spelling of 13121682 in words is "thirteen million, one hundred twenty-one thousand, six hundred eighty-two".