12480181 has 4 divisors (see below), whose sum is σ = 14263072. Its totient is φ = 10697292.

The previous prime is 12480161. The next prime is 12480199. The reversal of 12480181 is 18108421.

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.

It is a cyclic number.

It is not a de Polignac number, because 12480181 - 2¹¹ = 12478133 is a prime.

It is a super-3 number, since 3×12480181³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480161) 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, 891435 + ... + 891448.

It is an arithmetic number, because the mean of its divisors is an integer number (3565768).

Almost surely, 2^12480181 is an apocalyptic number.

It is an amenable number.

12480181 is a deficient number, since it is larger than the sum of its proper divisors (1782891).

12480181 is an equidigital number, since it uses as much as digits as its factorization.

12480181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782890.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 12480181 is about 3532.7299642062. The cubic root of 12480181 is about 231.9567212671.

The spelling of 12480181 in words is "twelve million, four hundred eighty thousand, one hundred eighty-one".