13101816 has 96 divisors (see below), whose sum is σ = 41081040. Its totient is φ = 3451392.

The previous prime is 13101797. The next prime is 13101827. The reversal of 13101816 is 61810131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13101792 and 13101801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14860 + ... + 15716.

Almost surely, 2^13101816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13101816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20540520).

13101816 is an abundant number, since it is smaller than the sum of its proper divisors (27979224).

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

13101816 is a wasteful number, since it uses less digits than its factorization.

13101816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 13101816 is about 3619.6430763267. The cubic root of 13101816 is about 235.7457282469.

Adding to 13101816 its reverse (61810131), we get a palindrome (74911947).

The spelling of 13101816 in words is "thirteen million, one hundred one thousand, eight hundred sixteen".