13102109 has 4 divisors (see below), whose sum is σ = 13110204. Its totient is φ = 13094016.

The previous prime is 13102099. The next prime is 13102139. The reversal of 13102109 is 90120131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 1562500 = 3397^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 13102109 - 2⁴ = 13102093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (3277551).

Almost surely, 2^13102109 is an apocalyptic number.

It is an amenable number.

13102109 is a deficient number, since it is larger than the sum of its proper divisors (8095).

13102109 is an equidigital number, since it uses as much as digits as its factorization.

13102109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 13102109 is about 3619.6835497043. The cubic root of 13102109 is about 235.7474855856.

The spelling of 13102109 in words is "thirteen million, one hundred two thousand, one hundred nine".