8257121 has 8 divisors (see below), whose sum is σ = 8792064. Its totient is φ = 7727680.

The previous prime is 8257057. The next prime is 8257157. The reversal of 8257121 is 1217528.

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

It is a cyclic number.

It is not a de Polignac number, because 8257121 - 2⁶ = 8257057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8257321) 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, 1976 + ... + 4518.

It is an arithmetic number, because the mean of its divisors is an integer number (1099008).

Almost surely, 2^8257121 is an apocalyptic number.

It is an amenable number.

8257121 is a deficient number, since it is larger than the sum of its proper divisors (534943).

8257121 is a wasteful number, since it uses less digits than its factorization.

8257121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751.

The product of its digits is 1120, while the sum is 26.

The square root of 8257121 is about 2873.5206628803. The cubic root of 8257121 is about 202.1201210196.

The spelling of 8257121 in words is "eight million, two hundred fifty-seven thousand, one hundred twenty-one".