8249121 has 24 divisors (see below), whose sum is σ = 12536160. Its totient is φ = 5419872.

The previous prime is 8249119. The next prime is 8249123. The reversal of 8249121 is 1219428.

It is an interprime number because it is at equal distance from previous prime (8249119) and next prime (8249123).

It is not a de Polignac number, because 8249121 - 2¹ = 8249119 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8249123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19965 + ... + 20373.

It is an arithmetic number, because the mean of its divisors is an integer number (522340).

Almost surely, 2^8249121 is an apocalyptic number.

8249121 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8249121 is a deficient number, since it is larger than the sum of its proper divisors (4287039).

8249121 is an equidigital number, since it uses as much as digits as its factorization.

8249121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 495 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 8249121 is about 2872.1283049335. The cubic root of 8249121 is about 202.0548245136.

The spelling of 8249121 in words is "eight million, two hundred forty-nine thousand, one hundred twenty-one".