8540121 has 8 divisors (see below), whose sum is σ = 11409120. Its totient is φ = 5682272.

The previous prime is 8540117. The next prime is 8540141. The reversal of 8540121 is 1210458.

8540121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 8540121 - 2² = 8540117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8540111) 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, 795 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (1426140).

Almost surely, 2^8540121 is an apocalyptic number.

It is an amenable number.

8540121 is a deficient number, since it is larger than the sum of its proper divisors (2868999).

8540121 is a wasteful number, since it uses less digits than its factorization.

8540121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5575.

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

The square root of 8540121 is about 2922.3485418410. The cubic root of 8540121 is about 204.4033494140.

Adding to 8540121 its reverse (1210458), we get a palindrome (9750579).

The spelling of 8540121 in words is "eight million, five hundred forty thousand, one hundred twenty-one".