21841059 has 8 divisors (see below), whose sum is σ = 29192272. Its totient is φ = 14525280.

The previous prime is 21841049. The next prime is 21841067. The reversal of 21841059 is 95014812.

It is a happy number.

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

It is not a de Polignac number, because 21841059 - 2¹¹ = 21839011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21841049) 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 7 ways as a sum of consecutive naturals, for example, 7384 + ... + 9909.

It is an arithmetic number, because the mean of its divisors is an integer number (3649034).

Almost surely, 2^21841059 is an apocalyptic number.

21841059 is a deficient number, since it is larger than the sum of its proper divisors (7351213).

21841059 is a wasteful number, since it uses less digits than its factorization.

21841059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17717.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 21841059 is about 4673.4418793861. The cubic root of 21841059 is about 279.5275152309.

The spelling of 21841059 in words is "twenty-one million, eight hundred forty-one thousand, fifty-nine".