11648171 has 4 divisors (see below), whose sum is σ = 11655000. Its totient is φ = 11641344.

The previous prime is 11648149. The next prime is 11648177. The reversal of 11648171 is 17184611.

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, and also an emirpimes, since its reverse is a distinct semiprime: 17184611 = 23 ⋅747157.

It is a cyclic number.

It is not a de Polignac number, because 11648171 - 2¹⁸ = 11386027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11648177) 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, 1580 + ... + 5078.

It is an arithmetic number, because the mean of its divisors is an integer number (2913750).

Almost surely, 2^11648171 is an apocalyptic number.

11648171 is a deficient number, since it is larger than the sum of its proper divisors (6829).

11648171 is an equidigital number, since it uses as much as digits as its factorization.

11648171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828.

The product of its digits is 1344, while the sum is 29.

The square root of 11648171 is about 3412.9416930267. The cubic root of 11648171 is about 226.6831535970.

The spelling of 11648171 in words is "eleven million, six hundred forty-eight thousand, one hundred seventy-one".