8152609 has 2 divisors, whose sum is σ = 8152610. Its totient is φ = 8152608.

The previous prime is 8152601. The next prime is 8152621. The reversal of 8152609 is 9062518.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7306209 + 846400 = 2703^2 + 920^2 .

It is a cyclic number.

It is not a de Polignac number, because 8152609 - 2³ = 8152601 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8152601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4076304 + 4076305.

It is an arithmetic number, because the mean of its divisors is an integer number (4076305).

Almost surely, 2^8152609 is an apocalyptic number.

It is an amenable number.

8152609 is a deficient number, since it is larger than the sum of its proper divisors (1).

8152609 is an equidigital number, since it uses as much as digits as its factorization.

8152609 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 31.

The square root of 8152609 is about 2855.2773945801. The cubic root of 8152609 is about 201.2637396584.

Subtracting 8152609 from its reverse (9062518), we obtain a palindrome (909909).

The spelling of 8152609 in words is "eight million, one hundred fifty-two thousand, six hundred nine".