11081239 has 8 divisors (see below), whose sum is σ = 12452832. Its totient is φ = 9783840.

The previous prime is 11081233. The next prime is 11081249. The reversal of 11081239 is 93218011.

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 11081239 - 2¹³ = 11073047 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 (11081233) 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 7 ways as a sum of consecutive naturals, for example, 18232 + ... + 18829.

It is an arithmetic number, because the mean of its divisors is an integer number (1556604).

Almost surely, 2^11081239 is an apocalyptic number.

11081239 is a deficient number, since it is larger than the sum of its proper divisors (1371593).

11081239 is a wasteful number, since it uses less digits than its factorization.

11081239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37097.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11081239 is about 3328.8495009537. The cubic root of 11081239 is about 222.9441634621.

The spelling of 11081239 in words is "eleven million, eighty-one thousand, two hundred thirty-nine".