13118389 has 4 divisors (see below), whose sum is σ = 13245856. Its totient is φ = 12990924.

The previous prime is 13118383. The next prime is 13118393. The reversal of 13118389 is 98381131.

It is a happy number.

13118389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98381131 = 131 ⋅751001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13118389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13118383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63579 + ... + 63784.

It is an arithmetic number, because the mean of its divisors is an integer number (3311464).

Almost surely, 2^13118389 is an apocalyptic number.

It is an amenable number.

13118389 is a deficient number, since it is larger than the sum of its proper divisors (127467).

13118389 is a wasteful number, since it uses less digits than its factorization.

13118389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127466.

The product of its digits is 5184, while the sum is 34.

The square root of 13118389 is about 3621.9316669424. The cubic root of 13118389 is about 235.8450876979.

The spelling of 13118389 in words is "thirteen million, one hundred eighteen thousand, three hundred eighty-nine".