1152509 has 2 divisors, whose sum is σ = 1152510. Its totient is φ = 1152508.

The previous prime is 1152493. The next prime is 1152517. The reversal of 1152509 is 9052511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 386884 = 875^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152509 - 2⁴ = 1152493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1152589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576254 + 576255.

It is an arithmetic number, because the mean of its divisors is an integer number (576255).

2^1152509 is an apocalyptic number.

It is an amenable number.

1152509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1152509 is an equidigital number, since it uses as much as digits as its factorization.

1152509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1152509 is about 1073.5497193889. The cubic root of 1152509 is about 104.8450928164.

It can be divided in two parts, 1152 and 509, that added together give a palindrome (1661).

The spelling of 1152509 in words is "one million, one hundred fifty-two thousand, five hundred nine".