12124399 has 4 divisors (see below), whose sum is σ = 13856464. Its totient is φ = 10392336.

The previous prime is 12124369. The next prime is 12124423. The reversal of 12124399 is 99342121.

12124399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12124399 - 2⁹ = 12123887 is a prime.

It is a super-2 number, since 2×12124399² = 294002102222402, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 12124399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866022 + ... + 866035.

It is an arithmetic number, because the mean of its divisors is an integer number (3464116).

Almost surely, 2^12124399 is an apocalyptic number.

12124399 is a deficient number, since it is larger than the sum of its proper divisors (1732065).

12124399 is an equidigital number, since it uses as much as digits as its factorization.

12124399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732064.

The product of its digits is 3888, while the sum is 31.

The square root of 12124399 is about 3482.0107696559. The cubic root of 12124399 is about 229.7312487879.

The spelling of 12124399 in words is "twelve million, one hundred twenty-four thousand, three hundred ninety-nine".