12405245 has 8 divisors (see below), whose sum is σ = 14929920. Its totient is φ = 9895120.

The previous prime is 12405221. The next prime is 12405269. The reversal of 12405245 is 54250421.

It is a happy number.

12405245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12405221) and next prime (12405269).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12405245 - 2⁸ = 12404989 is a prime.

It is a super-3 number, since 3×12405245³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12405245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (1866240).

Almost surely, 2^12405245 is an apocalyptic number.

It is an amenable number.

12405245 is a deficient number, since it is larger than the sum of its proper divisors (2524675).

12405245 is an equidigital number, since it uses as much as digits as its factorization.

12405245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 12405245 is about 3522.1080335504. The cubic root of 12405245 is about 231.4915353137.

Adding to 12405245 its reverse (54250421), we get a palindrome (66655666).

The spelling of 12405245 in words is "twelve million, four hundred five thousand, two hundred forty-five".