2124401 has 2 divisors, whose sum is σ = 2124402. Its totient is φ = 2124400.

The previous prime is 2124377. The next prime is 2124403. The reversal of 2124401 is 1044212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 524176 = 1265^2 + 724^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124401 - 2¹⁰ = 2123377 is a prime.

Together with 2124403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2124403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062200 + 1062201.

It is an arithmetic number, because the mean of its divisors is an integer number (1062201).

2^2124401 is an apocalyptic number.

It is an amenable number.

2124401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124401 is an equidigital number, since it uses as much as digits as its factorization.

2124401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2124401 is about 1457.5325039257. The cubic root of 2124401 is about 128.5519984159.

Adding to 2124401 its reverse (1044212), we get a palindrome (3168613).

The spelling of 2124401 in words is "two million, one hundred twenty-four thousand, four hundred one".