20229133 has 6 divisors (see below), whose sum is σ = 21489386. Its totient is φ = 19038912.

The previous prime is 20229119. The next prime is 20229161. The reversal of 20229133 is 33192202.

It can be written as a sum of positive squares in 3 ways, for example, as 11923209 + 8305924 = 3453^2 + 2882^2 .

It is not a de Polignac number, because 20229133 - 2⁵ = 20229101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20229193) 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 5 ways as a sum of consecutive naturals, for example, 34710 + ... + 35287.

Almost surely, 2^20229133 is an apocalyptic number.

It is an amenable number.

20229133 is a deficient number, since it is larger than the sum of its proper divisors (1260253).

20229133 is an equidigital number, since it uses as much as digits as its factorization.

20229133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70031 (or 70014 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20229133 is about 4497.6808468365. The cubic root of 20229133 is about 272.4744324131.

The spelling of 20229133 in words is "twenty million, two hundred twenty-nine thousand, one hundred thirty-three".