424393121 has 2 divisors, whose sum is σ = 424393122. Its totient is φ = 424393120.

The previous prime is 424393103. The next prime is 424393141. The reversal of 424393121 is 121393424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422754721 + 1638400 = 20561^2 + 1280^2 .

It is a cyclic number.

It is not a de Polignac number, because 424393121 - 2²² = 420198817 is a prime.

It is not a weakly prime, because it can be changed into another prime (424393141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212196560 + 212196561.

It is an arithmetic number, because the mean of its divisors is an integer number (212196561).

Almost surely, 2^424393121 is an apocalyptic number.

It is an amenable number.

424393121 is a deficient number, since it is larger than the sum of its proper divisors (1).

424393121 is an equidigital number, since it uses as much as digits as its factorization.

424393121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 424393121 is about 20600.8038920815. The cubic root of 424393121 is about 751.4892606979.

The spelling of 424393121 in words is "four hundred twenty-four million, three hundred ninety-three thousand, one hundred twenty-one".