13681002 has 8 divisors (see below), whose sum is σ = 27362016. Its totient is φ = 4560332.

The previous prime is 13680949. The next prime is 13681033. The reversal of 13681002 is 20018631.

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

13681002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 13681002.

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, 1140078 + ... + 1140089.

It is an arithmetic number, because the mean of its divisors is an integer number (3420252).

Almost surely, 2^13681002 is an apocalyptic number.

13681002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13681002 is a wasteful number, since it uses less digits than its factorization.

13681002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280172.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 13681002 is about 3698.7838541878. The cubic root of 13681002 is about 239.1695953756.

Adding to 13681002 its reverse (20018631), we get a palindrome (33699633).

The spelling of 13681002 in words is "thirteen million, six hundred eighty-one thousand, two".