11956163 has 4 divisors (see below), whose sum is σ = 11963160. Its totient is φ = 11949168.

The previous prime is 11956121. The next prime is 11956177. The reversal of 11956163 is 36165911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11956163 - 2⁶ = 11956099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11956103) 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, 956 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (2990790).

Almost surely, 2^11956163 is an apocalyptic number.

11956163 is a deficient number, since it is larger than the sum of its proper divisors (6997).

11956163 is an equidigital number, since it uses as much as digits as its factorization.

11956163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996.

The product of its digits is 4860, while the sum is 32.

The square root of 11956163 is about 3457.7685000590. The cubic root of 11956163 is about 228.6637259135.

The spelling of 11956163 in words is "eleven million, nine hundred fifty-six thousand, one hundred sixty-three".