11946171 has 4 divisors (see below), whose sum is σ = 15928232. Its totient is φ = 7964112.

The previous prime is 11946163. The next prime is 11946199. The reversal of 11946171 is 17164911.

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

It is not a de Polignac number, because 11946171 - 2³ = 11946163 is a prime.

It is a super-2 number, since 2×11946171² = 285422003122482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11946101) 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 3 ways as a sum of consecutive naturals, for example, 1991026 + ... + 1991031.

It is an arithmetic number, because the mean of its divisors is an integer number (3982058).

Almost surely, 2^11946171 is an apocalyptic number.

11946171 is a deficient number, since it is larger than the sum of its proper divisors (3982061).

11946171 is an equidigital number, since it uses as much as digits as its factorization.

11946171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982060.

The product of its digits is 1512, while the sum is 30.

The square root of 11946171 is about 3456.3233355692. The cubic root of 11946171 is about 228.6000085729.

The spelling of 11946171 in words is "eleven million, nine hundred forty-six thousand, one hundred seventy-one".