6128121 has 8 divisors (see below), whose sum is σ = 8305024. Its totient is φ = 4018320.

The previous prime is 6128113. The next prime is 6128137. The reversal of 6128121 is 1218216.

6128121 is nontrivially palindromic in base 6.

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

It is not a de Polignac number, because 6128121 - 2³ = 6128113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6128141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16561 + ... + 16926.

It is an arithmetic number, because the mean of its divisors is an integer number (1038128).

Almost surely, 2^6128121 is an apocalyptic number.

6128121 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6128121 is a deficient number, since it is larger than the sum of its proper divisors (2176903).

6128121 is a wasteful number, since it uses less digits than its factorization.

6128121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33551.

The product of its digits is 192, while the sum is 21.

The square root of 6128121 is about 2475.5041910690. The cubic root of 6128121 is about 182.9963569402.

It can be divided in two parts, 61 and 28121, that added together give a palindrome (28182).

The spelling of 6128121 in words is "six million, one hundred twenty-eight thousand, one hundred twenty-one".