12124417 has 6 divisors (see below), whose sum is σ = 12879878. Its totient is φ = 11410944.

The previous prime is 12124369. The next prime is 12124423. The reversal of 12124417 is 71442121.

It can be written as a sum of positive squares in 3 ways, for example, as 4036081 + 8088336 = 2009^2 + 2844^2 .

It is not a de Polignac number, because 12124417 - 2¹⁵ = 12091649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12124487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20688 + ... + 21265.

Almost surely, 2^12124417 is an apocalyptic number.

12124417 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12124417 is a deficient number, since it is larger than the sum of its proper divisors (755461).

12124417 is an equidigital number, since it uses as much as digits as its factorization.

12124417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41987 (or 41970 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 12124417 is about 3482.0133543684. The cubic root of 12124417 is about 229.7313624749.

Adding to 12124417 its reverse (71442121), we get a palindrome (83566538).

The spelling of 12124417 in words is "twelve million, one hundred twenty-four thousand, four hundred seventeen".