34315221 has 16 divisors (see below), whose sum is σ = 47075904. Its totient is φ = 22224384.

The previous prime is 34315219. The next prime is 34315261. The reversal of 34315221 is 12251343.

It is not a de Polignac number, because 34315221 - 2¹ = 34315219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34315201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16005 + ... + 18021.

It is an arithmetic number, because the mean of its divisors is an integer number (2942244).

Almost surely, 2^34315221 is an apocalyptic number.

It is an amenable number.

34315221 is a deficient number, since it is larger than the sum of its proper divisors (12760683).

34315221 is a wasteful number, since it uses less digits than its factorization.

34315221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180.

The product of its digits is 720, while the sum is 21.

The square root of 34315221 is about 5857.9195112258. The cubic root of 34315221 is about 324.9592722139.

Adding to 34315221 its reverse (12251343), we get a palindrome (46566564).

The spelling of 34315221 in words is "thirty-four million, three hundred fifteen thousand, two hundred twenty-one".