21300182 has 8 divisors (see below), whose sum is σ = 32142096. Its totient is φ = 10586152.

The previous prime is 21300173. The next prime is 21300187. The reversal of 21300182 is 28100312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21300182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31553 + ... + 32220.

It is an arithmetic number, because the mean of its divisors is an integer number (4017762).

Almost surely, 2^21300182 is an apocalyptic number.

21300182 is a deficient number, since it is larger than the sum of its proper divisors (10841914).

21300182 is a wasteful number, since it uses less digits than its factorization.

21300182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63942.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 21300182 is about 4615.2120211319. The cubic root of 21300182 is about 277.2007736937.

Adding to 21300182 its reverse (28100312), we get a palindrome (49400494).

The spelling of 21300182 in words is "twenty-one million, three hundred thousand, one hundred eighty-two".