12171063 has 4 divisors (see below), whose sum is σ = 16228088. Its totient is φ = 8114040.

The previous prime is 12171041. The next prime is 12171067. The reversal of 12171063 is 36017121.

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

It is not a de Polignac number, because 12171063 - 2⁶ = 12170999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12171067) 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, 2028508 + ... + 2028513.

It is an arithmetic number, because the mean of its divisors is an integer number (4057022).

Almost surely, 2^12171063 is an apocalyptic number.

12171063 is a deficient number, since it is larger than the sum of its proper divisors (4057025).

12171063 is an equidigital number, since it uses as much as digits as its factorization.

12171063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057024.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 12171063 is about 3488.7050606206. The cubic root of 12171063 is about 230.0255989151.

Adding to 12171063 its reverse (36017121), we get a palindrome (48188184).

The spelling of 12171063 in words is "twelve million, one hundred seventy-one thousand, sixty-three".