12123626 has 4 divisors (see below), whose sum is σ = 18185442. Its totient is φ = 6061812.

The previous prime is 12123607. The next prime is 12123637. The reversal of 12123626 is 62632121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62632121 = 31 ⋅2020391.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 5285401 = 2615^2 + 2299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030905 + ... + 3030908.

Almost surely, 2^12123626 is an apocalyptic number.

12123626 is a deficient number, since it is larger than the sum of its proper divisors (6061816).

12123626 is an equidigital number, since it uses as much as digits as its factorization.

12123626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061815.

The product of its digits is 864, while the sum is 23.

The square root of 12123626 is about 3481.8997688044. The cubic root of 12123626 is about 229.7263664557.

Adding to 12123626 its reverse (62632121), we get a palindrome (74755747).

The spelling of 12123626 in words is "twelve million, one hundred twenty-three thousand, six hundred twenty-six".