21233059 has 2 divisors, whose sum is σ = 21233060. Its totient is φ = 21233058.

The previous prime is 21233029. The next prime is 21233081. The reversal of 21233059 is 95033212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21233059 - 2⁵ = 21233027 is a prime.

It is not a weakly prime, because it can be changed into another prime (21233029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616529 + 10616530.

It is an arithmetic number, because the mean of its divisors is an integer number (10616530).

Almost surely, 2^21233059 is an apocalyptic number.

21233059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233059 is an equidigital number, since it uses as much as digits as its factorization.

21233059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 21233059 is about 4607.9343528310. The cubic root of 21233059 is about 276.9092875039.

The spelling of 21233059 in words is "twenty-one million, two hundred thirty-three thousand, fifty-nine".