12208631 has 8 divisors (see below), whose sum is σ = 12614784. Its totient is φ = 11806560.

The previous prime is 12208627. The next prime is 12208643. The reversal of 12208631 is 13680221.

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 12208631 - 2² = 12208627 is a prime.

It is a super-2 number, since 2×12208631² = 298101341788322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12208597 and 12208606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12208531) 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, 5786 + ... + 7608.

It is an arithmetic number, because the mean of its divisors is an integer number (1576848).

Almost surely, 2^12208631 is an apocalyptic number.

12208631 is a deficient number, since it is larger than the sum of its proper divisors (406153).

12208631 is a wasteful number, since it uses less digits than its factorization.

12208631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12208631 is about 3494.0851449271. The cubic root of 12208631 is about 230.2620265158.

Adding to 12208631 its reverse (13680221), we get a palindrome (25888852).

The spelling of 12208631 in words is "twelve million, two hundred eight thousand, six hundred thirty-one".