11513163 has 4 divisors (see below), whose sum is σ = 15350888. Its totient is φ = 7675440.

The previous prime is 11513149. The next prime is 11513171. The reversal of 11513163 is 36131511.

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

It is not a de Polignac number, because 11513163 - 2¹⁶ = 11447627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11513143) 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, 1918858 + ... + 1918863.

It is an arithmetic number, because the mean of its divisors is an integer number (3837722).

Almost surely, 2^11513163 is an apocalyptic number.

11513163 is a deficient number, since it is larger than the sum of its proper divisors (3837725).

11513163 is an equidigital number, since it uses as much as digits as its factorization.

11513163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837724.

The product of its digits is 270, while the sum is 21.

The square root of 11513163 is about 3393.1052149911. The cubic root of 11513163 is about 225.8039584831.

Adding to 11513163 its reverse (36131511), we get a palindrome (47644674).

The spelling of 11513163 in words is "eleven million, five hundred thirteen thousand, one hundred sixty-three".