21014133 has 16 divisors (see below), whose sum is σ = 33707520. Its totient is φ = 11375856.

The previous prime is 21014131. The next prime is 21014167. The reversal of 21014133 is 33141012.

It is not a de Polignac number, because 21014133 - 2¹ = 21014131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014131) 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 15 ways as a sum of consecutive naturals, for example, 25935 + ... + 26732.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 2^21014133 is an apocalyptic number.

It is an amenable number.

21014133 is a deficient number, since it is larger than the sum of its proper divisors (12693387).

21014133 is a wasteful number, since it uses less digits than its factorization.

21014133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52696.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 21014133 is about 4584.1174723168. The cubic root of 21014133 is about 275.9542956246.

Adding to 21014133 its reverse (33141012), we get a palindrome (54155145).

The spelling of 21014133 in words is "twenty-one million, fourteen thousand, one hundred thirty-three".