1424120521 has 2 divisors, whose sum is σ = 1424120522. Its totient is φ = 1424120520.

The previous prime is 1424120507. The next prime is 1424120531. The reversal of 1424120521 is 1250214241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1156340025 + 267780496 = 34005^2 + 16364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1424120521 - 2⁷ = 1424120393 is a prime.

It is a super-2 number, since 2×1424120521² = 4056238516666622882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1424120492 and 1424120501.

It is not a weakly prime, because it can be changed into another prime (1424120531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712060260 + 712060261.

It is an arithmetic number, because the mean of its divisors is an integer number (712060261).

Almost surely, 2^1424120521 is an apocalyptic number.

It is an amenable number.

1424120521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424120521 is an equidigital number, since it uses as much as digits as its factorization.

1424120521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1424120521 is about 37737.5213944954. The cubic root of 1424120521 is about 1125.0770043751.

Adding to 1424120521 its reverse (1250214241), we get a palindrome (2674334762).

The spelling of 1424120521 in words is "one billion, four hundred twenty-four million, one hundred twenty thousand, five hundred twenty-one".