12633305 has 4 divisors (see below), whose sum is σ = 15159972. Its totient is φ = 10106640.

The previous prime is 12633253. The next prime is 12633311. The reversal of 12633305 is 50333621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50333621 = 13 ⋅3871817.

It can be written as a sum of positive squares in 2 ways, for example, as 6911641 + 5721664 = 2629^2 + 2392^2 .

It is not a de Polignac number, because 12633305 - 2¹² = 12629209 is a prime.

It is a Duffinian 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, 1263326 + ... + 1263335.

It is an arithmetic number, because the mean of its divisors is an integer number (3789993).

Almost surely, 2^12633305 is an apocalyptic number.

It is an amenable number.

12633305 is a deficient number, since it is larger than the sum of its proper divisors (2526667).

12633305 is an equidigital number, since it uses as much as digits as its factorization.

12633305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526666.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 12633305 is about 3554.3360842779. The cubic root of 12633305 is about 232.9015222368.

Adding to 12633305 its reverse (50333621), we get a palindrome (62966926).

The spelling of 12633305 in words is "twelve million, six hundred thirty-three thousand, three hundred five".