11516943 has 4 divisors (see below), whose sum is σ = 15355928. Its totient is φ = 7677960.

The previous prime is 11516933. The next prime is 11517017. The reversal of 11516943 is 34961511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11516943 - 2¹³ = 11508751 is a prime.

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 11516943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919488 + ... + 1919493.

It is an arithmetic number, because the mean of its divisors is an integer number (3838982).

Almost surely, 2^11516943 is an apocalyptic number.

11516943 is a deficient number, since it is larger than the sum of its proper divisors (3838985).

11516943 is an equidigital number, since it uses as much as digits as its factorization.

11516943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838984.

The product of its digits is 3240, while the sum is 30.

The square root of 11516943 is about 3393.6621811842. The cubic root of 11516943 is about 225.8286677534.

The spelling of 11516943 in words is "eleven million, five hundred sixteen thousand, nine hundred forty-three".