13081908 has 48 divisors (see below), whose sum is σ = 36941184. Its totient is φ = 3517440.

The previous prime is 13081903. The next prime is 13081909. The reversal of 13081908 is 80918031.

It is a super-2 number, since 2×13081908² = 342272633840928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13081903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3153 + ... + 6008.

It is an arithmetic number, because the mean of its divisors is an integer number (769608).

Almost surely, 2^13081908 is an apocalyptic number.

It is an amenable number.

13081908 is an abundant number, since it is smaller than the sum of its proper divisors (23859276).

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

13081908 is a wasteful number, since it uses less digits than its factorization.

13081908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192 (or 9190 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 13081908 is about 3616.8920359889. The cubic root of 13081908 is about 235.6262637630.

Adding to 13081908 its reverse (80918031), we get a palindrome (93999939).

The spelling of 13081908 in words is "thirteen million, eighty-one thousand, nine hundred eight".