11381385 has 16 divisors (see below), whose sum is σ = 18703296. Its totient is φ = 5905728.

The previous prime is 11381353. The next prime is 11381393. The reversal of 11381385 is 58318311.

11381385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11381385 - 2⁵ = 11381353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9699 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (1168956).

Almost surely, 2^11381385 is an apocalyptic number.

11381385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11381385 is a deficient number, since it is larger than the sum of its proper divisors (7321911).

11381385 is a wasteful number, since it uses less digits than its factorization.

11381385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20552.

The product of its digits is 2880, while the sum is 30.

The square root of 11381385 is about 3373.6308333900. The cubic root of 11381385 is about 224.9391440355.

Adding to 11381385 its reverse (58318311), we get a palindrome (69699696).

The spelling of 11381385 in words is "eleven million, three hundred eighty-one thousand, three hundred eighty-five".