6750121 has 4 divisors (see below), whose sum is σ = 7714432. Its totient is φ = 5785812.

The previous prime is 6750113. The next prime is 6750167. The reversal of 6750121 is 1210576.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6750121 - 2³ = 6750113 is a prime.

It is a Duffinian number.

6750121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6750092 and 6750101.

It is not an unprimeable number, because it can be changed into a prime (6750221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482145 + ... + 482158.

It is an arithmetic number, because the mean of its divisors is an integer number (1928608).

Almost surely, 2^6750121 is an apocalyptic number.

It is an amenable number.

6750121 is a deficient number, since it is larger than the sum of its proper divisors (964311).

6750121 is an equidigital number, since it uses as much as digits as its factorization.

6750121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964310.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 6750121 is about 2598.0994977098. The cubic root of 6750121 is about 188.9892867401.

Adding to 6750121 its reverse (1210576), we get a palindrome (7960697).

The spelling of 6750121 in words is "six million, seven hundred fifty thousand, one hundred twenty-one".