4262509 has 2 divisors, whose sum is σ = 4262510. Its totient is φ = 4262508.

The previous prime is 4262491. The next prime is 4262513. The reversal of 4262509 is 9052624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2316484 + 1946025 = 1522^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 4262509 - 2⁹ = 4261997 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4262549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2131254 + 2131255.

It is an arithmetic number, because the mean of its divisors is an integer number (2131255).

Almost surely, 2^4262509 is an apocalyptic number.

It is an amenable number.

4262509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4262509 is an equidigital number, since it uses as much as digits as its factorization.

4262509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4262509 is about 2064.5844618228. The cubic root of 4262509 is about 162.1393532427.

The spelling of 4262509 in words is "four million, two hundred sixty-two thousand, five hundred nine".