11538943 has 8 divisors (see below), whose sum is σ = 12631136. Its totient is φ = 10476000.

The previous prime is 11538911. The next prime is 11538953. The reversal of 11538943 is 34983511.

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 11538943 - 2⁵ = 11538911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11538899 and 11538908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538953) 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 7 ways as a sum of consecutive naturals, for example, 6483 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (1578892).

Almost surely, 2^11538943 is an apocalyptic number.

11538943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11538943 is a deficient number, since it is larger than the sum of its proper divisors (1092193).

11538943 is a wasteful number, since it uses less digits than its factorization.

11538943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14625.

The product of its digits is 12960, while the sum is 34.

The square root of 11538943 is about 3396.9019709141. The cubic root of 11538943 is about 225.9723711232.

The spelling of 11538943 in words is "eleven million, five hundred thirty-eight thousand, nine hundred forty-three".