13189716 has 30 divisors (see below), whose sum is σ = 34481370. Its totient is φ = 4396464.

The previous prime is 13189703. The next prime is 13189721. The reversal of 13189716 is 61798131.

It can be written as a sum of positive squares in only one way, i.e., 10265616 + 2924100 = 3204^2 + 1710^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20031 + ... + 20678.

It is an arithmetic number, because the mean of its divisors is an integer number (1149379).

Almost surely, 2^13189716 is an apocalyptic number.

It is an amenable number.

13189716 is an abundant number, since it is smaller than the sum of its proper divisors (21291654).

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

13189716 is a wasteful number, since it uses less digits than its factorization.

13189716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40725 (or 40714 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 13189716 is about 3631.7648602298. The cubic root of 13189716 is about 236.2717591448.

The spelling of 13189716 in words is "thirteen million, one hundred eighty-nine thousand, seven hundred sixteen".