13081624 has 16 divisors (see below), whose sum is σ = 25126920. Its totient is φ = 6381120.

The previous prime is 13081613. The next prime is 13081631. The reversal of 13081624 is 42618031.

It is a super-2 number, since 2×13081624² = 342257772954752, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19614 + ... + 20269.

Almost surely, 2^13081624 is an apocalyptic number.

It is an amenable number.

13081624 is a deficient number, since it is larger than the sum of its proper divisors (12045296).

13081624 is a wasteful number, since it uses less digits than its factorization.

13081624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39930 (or 39926 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13081624 is about 3616.8527755495. The cubic root of 13081624 is about 235.6245586513.

Adding to 13081624 its reverse (42618031), we get a palindrome (55699655).

The spelling of 13081624 in words is "thirteen million, eighty-one thousand, six hundred twenty-four".