1420032521 has 2 divisors, whose sum is σ = 1420032522. Its totient is φ = 1420032520.

The previous prime is 1420032511. The next prime is 1420032527. The reversal of 1420032521 is 1252300241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1170392521 + 249640000 = 34211^2 + 15800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420032521 - 2¹⁰ = 1420031497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1420032493 and 1420032502.

It is not a weakly prime, because it can be changed into another prime (1420032527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710016260 + 710016261.

It is an arithmetic number, because the mean of its divisors is an integer number (710016261).

Almost surely, 2^1420032521 is an apocalyptic number.

It is an amenable number.

1420032521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420032521 is an equidigital number, since it uses as much as digits as its factorization.

1420032521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1420032521 is about 37683.3188692291. The cubic root of 1420032521 is about 1123.9994451372. Note that the first 3 decimals are identical.

Adding to 1420032521 its reverse (1252300241), we get a palindrome (2672332762).

The spelling of 1420032521 in words is "one billion, four hundred twenty million, thirty-two thousand, five hundred twenty-one".