34152221 has 16 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 31662720.

The previous prime is 34152203. The next prime is 34152229. The reversal of 34152221 is 12225143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34152221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34152193 and 34152202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34152229) 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, 71060 + ... + 71538.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^34152221 is an apocalyptic number.

It is an amenable number.

34152221 is a deficient number, since it is larger than the sum of its proper divisors (2619619).

34152221 is a wasteful number, since it uses less digits than its factorization.

34152221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604.

The product of its digits is 480, while the sum is 20.

The square root of 34152221 is about 5843.9901608405. The cubic root of 34152221 is about 324.4439280040.

Adding to 34152221 its reverse (12225143), we get a palindrome (46377364).

The spelling of 34152221 in words is "thirty-four million, one hundred fifty-two thousand, two hundred twenty-one".