544312121 has 2 divisors, whose sum is σ = 544312122. Its totient is φ = 544312120.

The previous prime is 544312117. The next prime is 544312127. The reversal of 544312121 is 121213445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413552896 + 130759225 = 20336^2 + 11435^2 .

It is a cyclic number.

It is not a de Polignac number, because 544312121 - 2² = 544312117 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (544312127) 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 as a sum of consecutive naturals, namely, 272156060 + 272156061.

It is an arithmetic number, because the mean of its divisors is an integer number (272156061).

Almost surely, 2^544312121 is an apocalyptic number.

It is an amenable number.

544312121 is a deficient number, since it is larger than the sum of its proper divisors (1).

544312121 is an equidigital number, since it uses as much as digits as its factorization.

544312121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 544312121 is about 23330.4976586441. The cubic root of 544312121 is about 816.4871143421.

Adding to 544312121 its reverse (121213445), we get a palindrome (665525566).

The spelling of 544312121 in words is "five hundred forty-four million, three hundred twelve thousand, one hundred twenty-one".