13109308 has 6 divisors (see below), whose sum is σ = 22941296. Its totient is φ = 6554652.

The previous prime is 13109303. The next prime is 13109309. The reversal of 13109308 is 80390131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13109303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638660 + ... + 1638667.

Almost surely, 2^13109308 is an apocalyptic number.

It is an amenable number.

13109308 is a deficient number, since it is larger than the sum of its proper divisors (9831988).

13109308 is a wasteful number, since it uses less digits than its factorization.

13109308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277331 (or 3277329 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13109308 is about 3620.6778370907. The cubic root of 13109308 is about 235.7906551091.

Adding to 13109308 its reverse (80390131), we get a palindrome (93499439).

The spelling of 13109308 in words is "thirteen million, one hundred nine thousand, three hundred eight".