34133221 has 4 divisors (see below), whose sum is σ = 34692844. Its totient is φ = 33573600.

The previous prime is 34133171. The next prime is 34133227. The reversal of 34133221 is 12233143.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12233143 = 13 ⋅941011.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 31528225 = 1614^2 + 5615^2 .

It is a cyclic number.

It is not a de Polignac number, because 34133221 - 2²⁵ = 578789 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 (34133227) 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 3 ways as a sum of consecutive naturals, for example, 279720 + ... + 279841.

It is an arithmetic number, because the mean of its divisors is an integer number (8673211).

Almost surely, 2^34133221 is an apocalyptic number.

It is an amenable number.

34133221 is a deficient number, since it is larger than the sum of its proper divisors (559623).

34133221 is an equidigital number, since it uses as much as digits as its factorization.

34133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559622.

The product of its digits is 432, while the sum is 19.

The square root of 34133221 is about 5842.3643330419. The cubic root of 34133221 is about 324.3837505791.

Adding to 34133221 its reverse (12233143), we get a palindrome (46366364).

The spelling of 34133221 in words is "thirty-four million, one hundred thirty-three thousand, two hundred twenty-one".