12496181 has 8 divisors (see below), whose sum is σ = 12832344. Its totient is φ = 12163840.

The previous prime is 12496151. The next prime is 12496217. The reversal of 12496181 is 18169421.

It can be written as a sum of positive squares in 4 ways, for example, as 4884100 + 7612081 = 2210^2 + 2759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12496181 - 2⁶ = 12496117 is a prime.

It is a super-2 number, since 2×12496181² = 312309079169522, 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 (12496151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6401 + ... + 8121.

It is an arithmetic number, because the mean of its divisors is an integer number (1604043).

Almost surely, 2^12496181 is an apocalyptic number.

It is an amenable number.

12496181 is a deficient number, since it is larger than the sum of its proper divisors (336163).

12496181 is a wasteful number, since it uses less digits than its factorization.

12496181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 3456, while the sum is 32.

The square root of 12496181 is about 3534.9937765150. The cubic root of 12496181 is about 232.0558043029.

The spelling of 12496181 in words is "twelve million, four hundred ninety-six thousand, one hundred eighty-one".