13089538 has 24 divisors (see below), whose sum is σ = 24667776. Its totient is φ = 5099160.

The previous prime is 13089529. The next prime is 13089539. The reversal of 13089538 is 83598031.

13089538 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13089538 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 13089497 and 13089506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13089539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2170 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (1027824).

Almost surely, 2^13089538 is an apocalyptic number.

13089538 is a deficient number, since it is larger than the sum of its proper divisors (11578238).

13089538 is a wasteful number, since it uses less digits than its factorization.

13089538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 7747 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 13089538 is about 3617.9466552176. The cubic root of 13089538 is about 235.6720643954.

The spelling of 13089538 in words is "thirteen million, eighty-nine thousand, five hundred thirty-eight".