34015221 has 20 divisors (see below), whose sum is σ = 50978752. Its totient is φ = 22602888.

The previous prime is 34015217. The next prime is 34015237. The reversal of 34015221 is 12251043.

34015221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34015221 - 2² = 34015217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34015194 and 34015203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34015291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37050 + ... + 37956.

Almost surely, 2^34015221 is an apocalyptic number.

It is an amenable number.

34015221 is a deficient number, since it is larger than the sum of its proper divisors (16963531).

34015221 is an equidigital number, since it uses as much as digits as its factorization.

34015221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1373 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 34015221 is about 5832.2569387845. The cubic root of 34015221 is about 324.0095161814.

Adding to 34015221 its reverse (12251043), we get a palindrome (46266264).

The spelling of 34015221 in words is "thirty-four million, fifteen thousand, two hundred twenty-one".