12238171 has 4 divisors (see below), whose sum is σ = 13350744. Its totient is φ = 11125600.

The previous prime is 12238159. The next prime is 12238183. The reversal of 12238171 is 17183221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17183221 = 11 ⋅1562111.

It is an interprime number because it is at equal distance from previous prime (12238159) and next prime (12238183).

It is a cyclic number.

It is not a de Polignac number, because 12238171 - 2⁷ = 12238043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12238111) 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, 556270 + ... + 556291.

It is an arithmetic number, because the mean of its divisors is an integer number (3337686).

Almost surely, 2^12238171 is an apocalyptic number.

12238171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12238171 is a deficient number, since it is larger than the sum of its proper divisors (1112573).

12238171 is a wasteful number, since it uses less digits than its factorization.

12238171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112572.

The product of its digits is 672, while the sum is 25.

The square root of 12238171 is about 3498.3097347148. The cubic root of 12238171 is about 230.4475909097.

The spelling of 12238171 in words is "twelve million, two hundred thirty-eight thousand, one hundred seventy-one".