12488181 has 4 divisors (see below), whose sum is σ = 16650912. Its totient is φ = 8325452.

The previous prime is 12488173. The next prime is 12488191. The reversal of 12488181 is 18188421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18188421 = 3 ⋅6062807.

It is a cyclic number.

It is not a de Polignac number, because 12488181 - 2³ = 12488173 is a prime.

It is a super-2 number, since 2×12488181² = 311909329377522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12488131) 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, 2081361 + ... + 2081366.

It is an arithmetic number, because the mean of its divisors is an integer number (4162728).

Almost surely, 2^12488181 is an apocalyptic number.

It is an amenable number.

12488181 is a deficient number, since it is larger than the sum of its proper divisors (4162731).

12488181 is an equidigital number, since it uses as much as digits as its factorization.

12488181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162730.

The product of its digits is 4096, while the sum is 33.

The square root of 12488181 is about 3533.8620516370. The cubic root of 12488181 is about 232.0062733639.

The spelling of 12488181 in words is "twelve million, four hundred eighty-eight thousand, one hundred eighty-one".