10644121 has 2 divisors, whose sum is σ = 10644122. Its totient is φ = 10644120.

The previous prime is 10644097. The next prime is 10644163. The reversal of 10644121 is 12144601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10634121 + 10000 = 3261^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 10644121 - 2²¹ = 8546969 is a prime.

It is a super-2 number, since 2×10644121² = 226594623725282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10644181) 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 as a sum of consecutive naturals, namely, 5322060 + 5322061.

It is an arithmetic number, because the mean of its divisors is an integer number (5322061).

Almost surely, 2^10644121 is an apocalyptic number.

It is an amenable number.

10644121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10644121 is an equidigital number, since it uses as much as digits as its factorization.

10644121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10644121 is about 3262.5329117114. The cubic root of 10644121 is about 219.9732818793.

Adding to 10644121 its reverse (12144601), we get a palindrome (22788722).

The spelling of 10644121 in words is "ten million, six hundred forty-four thousand, one hundred twenty-one".