11638103 has 4 divisors (see below), whose sum is σ = 11671800. Its totient is φ = 11604408.

The previous prime is 11638097. The next prime is 11638139. The reversal of 11638103 is 30183611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30183611 = 467 ⋅64633.

It is a cyclic number.

It is not a de Polignac number, because 11638103 - 2⁴ = 11638087 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 (11638303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16325 + ... + 17022.

It is an arithmetic number, because the mean of its divisors is an integer number (2917950).

Almost surely, 2^11638103 is an apocalyptic number.

11638103 is a deficient number, since it is larger than the sum of its proper divisors (33697).

11638103 is an equidigital number, since it uses as much as digits as its factorization.

11638103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33696.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11638103 is about 3411.4664002449. The cubic root of 11638103 is about 226.6178242031.

The spelling of 11638103 in words is "eleven million, six hundred thirty-eight thousand, one hundred three".