12613633 has 4 divisors (see below), whose sum is σ = 12954580. Its totient is φ = 12272688.

The previous prime is 12613631. The next prime is 12613639. The reversal of 12613633 is 33631621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33631621 = 31 ⋅1084891.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 7360369 = 2292^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 12613633 - 2¹ = 12613631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12613598 and 12613607.

It is not an unprimeable number, because it can be changed into a prime (12613631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170418 + ... + 170491.

It is an arithmetic number, because the mean of its divisors is an integer number (3238645).

Almost surely, 2^12613633 is an apocalyptic number.

It is an amenable number.

12613633 is a deficient number, since it is larger than the sum of its proper divisors (340947).

12613633 is an equidigital number, since it uses as much as digits as its factorization.

12613633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340946.

The product of its digits is 1944, while the sum is 25.

The square root of 12613633 is about 3551.5676820244. The cubic root of 12613633 is about 232.7805715985.

The spelling of 12613633 in words is "twelve million, six hundred thirteen thousand, six hundred thirty-three".