11138389 has 8 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 10326816.

The previous prime is 11138377. The next prime is 11138423. The reversal of 11138389 is 98383111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11138389 - 2⁵ = 11138357 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 (11138359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5344 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^11138389 is an apocalyptic number.

11138389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11138389 is a deficient number, since it is larger than the sum of its proper divisors (836651).

11138389 is a wasteful number, since it uses less digits than its factorization.

11138389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12539.

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

The square root of 11138389 is about 3337.4225084637. The cubic root of 11138389 is about 223.3267746397.

The spelling of 11138389 in words is "eleven million, one hundred thirty-eight thousand, three hundred eighty-nine".