8212251 has 8 divisors (see below), whose sum is σ = 10964560. Its totient is φ = 5467392.

The previous prime is 8212213. The next prime is 8212277. The reversal of 8212251 is 1522128.

It is a happy number.

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

It is not a de Polignac number, because 8212251 - 2⁹ = 8211739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8212291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (1370570).

Almost surely, 2^8212251 is an apocalyptic number.

8212251 is a deficient number, since it is larger than the sum of its proper divisors (2752309).

8212251 is a wasteful number, since it uses less digits than its factorization.

8212251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725.

The product of its digits is 320, while the sum is 21.

The square root of 8212251 is about 2865.7025316665. The cubic root of 8212251 is about 201.7533423682.

Adding to 8212251 its reverse (1522128), we get a palindrome (9734379).

The spelling of 8212251 in words is "eight million, two hundred twelve thousand, two hundred fifty-one".