12117626 has 4 divisors (see below), whose sum is σ = 18176442. Its totient is φ = 6058812.

The previous prime is 12117607. The next prime is 12117659. The reversal of 12117626 is 62671121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62671121 = 433 ⋅144737.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 1221025 = 3301^2 + 1105^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12117595 and 12117604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3029405 + ... + 3029408.

Almost surely, 2^12117626 is an apocalyptic number.

12117626 is a deficient number, since it is larger than the sum of its proper divisors (6058816).

12117626 is an equidigital number, since it uses as much as digits as its factorization.

12117626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058815.

The product of its digits is 1008, while the sum is 26.

The square root of 12117626 is about 3481.0380635667. The cubic root of 12117626 is about 229.6884628988.

Adding to 12117626 its reverse (62671121), we get a palindrome (74788747).

The spelling of 12117626 in words is "twelve million, one hundred seventeen thousand, six hundred twenty-six".