124021441 has 2 divisors, whose sum is σ = 124021442. Its totient is φ = 124021440.

The previous prime is 124021439. The next prime is 124021463. The reversal of 124021441 is 144120421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62869041 + 61152400 = 7929^2 + 7820^2 .

It is a cyclic number.

It is not a de Polignac number, because 124021441 - 2¹ = 124021439 is a prime.

Together with 124021439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (124021141) 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, 62010720 + 62010721.

It is an arithmetic number, because the mean of its divisors is an integer number (62010721).

Almost surely, 2^124021441 is an apocalyptic number.

It is an amenable number.

124021441 is a deficient number, since it is larger than the sum of its proper divisors (1).

124021441 is an equidigital number, since it uses as much as digits as its factorization.

124021441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 124021441 is about 11136.4914133671. The cubic root of 124021441 is about 498.6918350605.

Adding to 124021441 its reverse (144120421), we get a palindrome (268141862).

The spelling of 124021441 in words is "one hundred twenty-four million, twenty-one thousand, four hundred forty-one".