4241509 has 2 divisors, whose sum is σ = 4241510. Its totient is φ = 4241508.

The previous prime is 4241507. The next prime is 4241521. The reversal of 4241509 is 9051424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 1633284 = 1615^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 4241509 - 2¹ = 4241507 is a prime.

Together with 4241507, it forms a pair of twin primes.

4241509 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4241507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120754 + 2120755.

It is an arithmetic number, because the mean of its divisors is an integer number (2120755).

Almost surely, 2^4241509 is an apocalyptic number.

It is an amenable number.

4241509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4241509 is an equidigital number, since it uses as much as digits as its factorization.

4241509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 4241509 is about 2059.4924131931. The cubic root of 4241509 is about 161.8726454242.

The spelling of 4241509 in words is "four million, two hundred forty-one thousand, five hundred nine".