21482103 has 16 divisors (see below), whose sum is σ = 30286080. Its totient is φ = 13506624.

The previous prime is 21482093. The next prime is 21482107. The reversal of 21482103 is 30128412.

It is not a de Polignac number, because 21482103 - 2⁸ = 21481847 is a prime.

It is a super-2 number, since 2×21482103² = 922961498605218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21482103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14275 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (1892880).

Almost surely, 2^21482103 is an apocalyptic number.

21482103 is a deficient number, since it is larger than the sum of its proper divisors (8803977).

21482103 is a wasteful number, since it uses less digits than its factorization.

21482103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 21482103 is about 4634.8789628209. The cubic root of 21482103 is about 277.9877114455.

The spelling of 21482103 in words is "twenty-one million, four hundred eighty-two thousand, one hundred three".