11039381 has 4 divisors (see below), whose sum is σ = 11179200. Its totient is φ = 10899564.

The previous prime is 11039359. The next prime is 11039383. The reversal of 11039381 is 18393011.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11039381 is a prime.

It is a super-2 number, since 2×11039381² = 243735865726322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11039381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11039383) 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 3 ways as a sum of consecutive naturals, for example, 69791 + ... + 69948.

It is an arithmetic number, because the mean of its divisors is an integer number (2794800).

Almost surely, 2^11039381 is an apocalyptic number.

It is an amenable number.

11039381 is a deficient number, since it is larger than the sum of its proper divisors (139819).

11039381 is an equidigital number, since it uses as much as digits as its factorization.

11039381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139818.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11039381 is about 3322.5563953077. The cubic root of 11039381 is about 222.6630946614.

The spelling of 11039381 in words is "eleven million, thirty-nine thousand, three hundred eighty-one".