13137489 has 24 divisors (see below), whose sum is σ = 19699680. Its totient is φ = 8430912.

The previous prime is 13137473. The next prime is 13137491. The reversal of 13137489 is 98473131.

It is a happy number.

It is not a de Polignac number, because 13137489 - 2⁴ = 13137473 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13137409) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31917 + ... + 32325.

It is an arithmetic number, because the mean of its divisors is an integer number (820820).

Almost surely, 2^13137489 is an apocalyptic number.

It is an amenable number.

13137489 is a deficient number, since it is larger than the sum of its proper divisors (6562191).

13137489 is a wasteful number, since it uses less digits than its factorization.

13137489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 538 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13137489 is about 3624.5674224657. The cubic root of 13137489 is about 235.9594934310.

The spelling of 13137489 in words is "thirteen million, one hundred thirty-seven thousand, four hundred eighty-nine".