11239945 has 8 divisors (see below), whose sum is σ = 13817160. Its totient is φ = 8772480.

The previous prime is 11239933. The next prime is 11239951. The reversal of 11239945 is 54993211.

It can be written as a sum of positive squares in 4 ways, for example, as 190969 + 11048976 = 437^2 + 3324^2 .

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

It is not a de Polignac number, because 11239945 - 2¹⁹ = 10715657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11239945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27210 + ... + 27619.

It is an arithmetic number, because the mean of its divisors is an integer number (1727145).

Almost surely, 2^11239945 is an apocalyptic number.

It is an amenable number.

11239945 is a deficient number, since it is larger than the sum of its proper divisors (2577215).

11239945 is an equidigital number, since it uses as much as digits as its factorization.

11239945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54875.

The product of its digits is 9720, while the sum is 34.

The square root of 11239945 is about 3352.6027202757. The cubic root of 11239945 is about 224.0034610966.

The spelling of 11239945 in words is "eleven million, two hundred thirty-nine thousand, nine hundred forty-five".