12309126 has 16 divisors (see below), whose sum is σ = 24655104. Its totient is φ = 4096904.

The previous prime is 12309119. The next prime is 12309133. The reversal of 12309126 is 62190321.

It is an interprime number because it is at equal distance from previous prime (12309119) and next prime (12309133).

It is a junction number, because it is equal to n+sod(n) for n = 12309096 and 12309105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4855 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (1540944).

Almost surely, 2^12309126 is an apocalyptic number.

12309126 is an abundant number, since it is smaller than the sum of its proper divisors (12345978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12309126 is a wasteful number, since it uses less digits than its factorization.

12309126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12309126 is about 3508.4364038700. The cubic root of 12309126 is about 230.8920993045.

Adding to 12309126 its reverse (62190321), we get a palindrome (74499447).

The spelling of 12309126 in words is "twelve million, three hundred nine thousand, one hundred twenty-six".