20130833 has 2 divisors, whose sum is σ = 20130834. Its totient is φ = 20130832.

The previous prime is 20130829. The next prime is 20130841. The reversal of 20130833 is 33803102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19509889 + 620944 = 4417^2 + 788^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130833 - 2² = 20130829 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065416 + 10065417.

It is an arithmetic number, because the mean of its divisors is an integer number (10065417).

Almost surely, 2^20130833 is an apocalyptic number.

It is an amenable number.

20130833 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130833 is an equidigital number, since it uses as much as digits as its factorization.

20130833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20130833 is about 4486.7396848937. The cubic root of 20130833 is about 272.0323680122.

Adding to 20130833 its reverse (33803102), we get a palindrome (53933935).

The spelling of 20130833 in words is "twenty million, one hundred thirty thousand, eight hundred thirty-three".