34147221 has 4 divisors (see below), whose sum is σ = 45529632. Its totient is φ = 22764812.

The previous prime is 34147187. The next prime is 34147241. The reversal of 34147221 is 12274143.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34147221 - 2¹⁰ = 34146197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34147191 and 34147200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34147241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5691201 + ... + 5691206.

It is an arithmetic number, because the mean of its divisors is an integer number (11382408).

Almost surely, 2^34147221 is an apocalyptic number.

It is an amenable number.

34147221 is a deficient number, since it is larger than the sum of its proper divisors (11382411).

34147221 is a wasteful number, since it uses less digits than its factorization.

34147221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11382410.

The product of its digits is 1344, while the sum is 24.

The square root of 34147221 is about 5843.5623552761. The cubic root of 34147221 is about 324.4280940039.

The spelling of 34147221 in words is "thirty-four million, one hundred forty-seven thousand, two hundred twenty-one".