12351422 has 4 divisors (see below), whose sum is σ = 18527136. Its totient is φ = 6175710.

The previous prime is 12351407. The next prime is 12351431. The reversal of 12351422 is 22415321.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12351394 and 12351403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3087854 + ... + 3087857.

It is an arithmetic number, because the mean of its divisors is an integer number (4631784).

Almost surely, 2^12351422 is an apocalyptic number.

12351422 is a deficient number, since it is larger than the sum of its proper divisors (6175714).

12351422 is an equidigital number, since it uses as much as digits as its factorization.

12351422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175713.

The product of its digits is 480, while the sum is 20.

The square root of 12351422 is about 3514.4589910824. The cubic root of 12351422 is about 231.1562569151.

Adding to 12351422 its reverse (22415321), we get a palindrome (34766743).

The spelling of 12351422 in words is "twelve million, three hundred fifty-one thousand, four hundred twenty-two".