6231121 has 4 divisors (see below), whose sum is σ = 6710452. Its totient is φ = 5751792.

The previous prime is 6231109. The next prime is 6231131. The reversal of 6231121 is 1211326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2073600 + 4157521 = 1440^2 + 2039^2 .

It is a cyclic number.

It is not a de Polignac number, because 6231121 - 2¹¹ = 6229073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6231095 and 6231104.

It is not an unprimeable number, because it can be changed into a prime (6231101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239646 + ... + 239671.

It is an arithmetic number, because the mean of its divisors is an integer number (1677613).

Almost surely, 2^6231121 is an apocalyptic number.

It is an amenable number.

6231121 is a deficient number, since it is larger than the sum of its proper divisors (479331).

6231121 is a wasteful number, since it uses less digits than its factorization.

6231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479330.

The product of its digits is 72, while the sum is 16.

The square root of 6231121 is about 2496.2213443523. The cubic root of 6231121 is about 184.0159189913.

Adding to 6231121 its reverse (1211326), we get a palindrome (7442447).

The spelling of 6231121 in words is "six million, two hundred thirty-one thousand, one hundred twenty-one".