8134221 has 8 divisors (see below), whose sum is σ = 10865344. Its totient is φ = 5412960.

The previous prime is 8134201. The next prime is 8134229. The reversal of 8134221 is 1224318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8134221 - 2¹³ = 8126029 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 (8134229) 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 7 ways as a sum of consecutive naturals, for example, 256 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (1358168).

Almost surely, 2^8134221 is an apocalyptic number.

It is an amenable number.

8134221 is a deficient number, since it is larger than the sum of its proper divisors (2731123).

8134221 is a wasteful number, since it uses less digits than its factorization.

8134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931.

The product of its digits is 384, while the sum is 21.

The square root of 8134221 is about 2852.0555744936. The cubic root of 8134221 is about 201.1123106897.

Adding to 8134221 its reverse (1224318), we get a palindrome (9358539).

Subtracting from 8134221 its reverse (1224318), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 8134221 in words is "eight million, one hundred thirty-four thousand, two hundred twenty-one".