8453121 has 8 divisors (see below), whose sum is σ = 11760960. Its totient is φ = 5390352.

The previous prime is 8453117. The next prime is 8453141. The reversal of 8453121 is 1213548.

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

It is not a de Polignac number, because 8453121 - 2² = 8453117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8453091 and 8453100.

It is not an unprimeable number, because it can be changed into a prime (8453141) 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, 61186 + ... + 61323.

It is an arithmetic number, because the mean of its divisors is an integer number (1470120).

Almost surely, 2^8453121 is an apocalyptic number.

It is an amenable number.

8453121 is a deficient number, since it is larger than the sum of its proper divisors (3307839).

8453121 is a wasteful number, since it uses less digits than its factorization.

8453121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122535.

The product of its digits is 960, while the sum is 24.

The square root of 8453121 is about 2907.4251495094. The cubic root of 8453121 is about 203.7068791028.

Adding to 8453121 its reverse (1213548), we get a palindrome (9666669).

The spelling of 8453121 in words is "eight million, four hundred fifty-three thousand, one hundred twenty-one".