12464181 has 6 divisors (see below), whose sum is σ = 18003830. Its totient is φ = 8309448.

The previous prime is 12464167. The next prime is 12464189. The reversal of 12464181 is 18146421.

It is a happy number.

12464181 is a `hidden beast` number, since 1 + 246 + 418 + 1 = 666.

12464181 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 1134225 = 3366^2 + 1065^2 .

It is not a de Polignac number, because 12464181 - 2⁵ = 12464149 is a prime.

It is a super-2 number, since 2×12464181² = 310711616001522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12464189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692446 + ... + 692463.

Almost surely, 2^12464181 is an apocalyptic number.

It is an amenable number.

12464181 is a deficient number, since it is larger than the sum of its proper divisors (5539649).

12464181 is a wasteful number, since it uses less digits than its factorization.

12464181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384915 (or 1384912 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 12464181 is about 3530.4647002909. The cubic root of 12464181 is about 231.8575535099.

The spelling of 12464181 in words is "twelve million, four hundred sixty-four thousand, one hundred eighty-one".