11381541 has 16 divisors (see below), whose sum is σ = 15730176. Its totient is φ = 7315056.

The previous prime is 11381537. The next prime is 11381561. The reversal of 11381541 is 14518311.

11381541 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11381541 - 2² = 11381537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10176 + ... + 11238.

It is an arithmetic number, because the mean of its divisors is an integer number (983136).

Almost surely, 2^11381541 is an apocalyptic number.

It is an amenable number.

11381541 is a deficient number, since it is larger than the sum of its proper divisors (4348635).

11381541 is a wasteful number, since it uses less digits than its factorization.

11381541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its digits is 480, while the sum is 24.

The square root of 11381541 is about 3373.6539538014. The cubic root of 11381541 is about 224.9401717472.

Adding to 11381541 its reverse (14518311), we get a palindrome (25899852).

The spelling of 11381541 in words is "eleven million, three hundred eighty-one thousand, five hundred forty-one".