12351005 has 4 divisors (see below), whose sum is σ = 14821212. Its totient is φ = 9880800.

The previous prime is 12350983. The next prime is 12351011. The reversal of 12351005 is 50015321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50015321 = 43 ⋅1163147.

It can be written as a sum of positive squares in 2 ways, for example, as 4268356 + 8082649 = 2066^2 + 2843^2 .

It is not a de Polignac number, because 12351005 - 2⁶ = 12350941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235096 + ... + 1235105.

It is an arithmetic number, because the mean of its divisors is an integer number (3705303).

Almost surely, 2^12351005 is an apocalyptic number.

It is an amenable number.

12351005 is a deficient number, since it is larger than the sum of its proper divisors (2470207).

12351005 is an equidigital number, since it uses as much as digits as its factorization.

12351005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470206.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12351005 is about 3514.3996642385. The cubic root of 12351005 is about 231.1536555077.

Adding to 12351005 its reverse (50015321), we get a palindrome (62366326).

The spelling of 12351005 in words is "twelve million, three hundred fifty-one thousand, five".