12325405 has 4 divisors (see below), whose sum is σ = 14790492. Its totient is φ = 9860320.

The previous prime is 12325399. The next prime is 12325409. The reversal of 12325405 is 50452321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50452321 = 4337 ⋅11633.

It can be written as a sum of positive squares in 2 ways, for example, as 5466244 + 6859161 = 2338^2 + 2619^2 .

It is not a de Polignac number, because 12325405 - 2⁵ = 12325373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12325409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232536 + ... + 1232545.

It is an arithmetic number, because the mean of its divisors is an integer number (3697623).

Almost surely, 2^12325405 is an apocalyptic number.

It is an amenable number.

12325405 is a deficient number, since it is larger than the sum of its proper divisors (2465087).

12325405 is an equidigital number, since it uses as much as digits as its factorization.

12325405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465086.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 12325405 is about 3510.7556166729. The cubic root of 12325405 is about 230.9938405309.

Adding to 12325405 its reverse (50452321), we get a palindrome (62777726).

The spelling of 12325405 in words is "twelve million, three hundred twenty-five thousand, four hundred five".