34145509 has 2 divisors, whose sum is σ = 34145510. Its totient is φ = 34145508.

The previous prime is 34145491. The next prime is 34145521. The reversal of 34145509 is 90554143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32741284 + 1404225 = 5722^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 34145509 - 2⁹ = 34144997 is a prime.

It is a Chen prime.

It is equal to p_2097706 and since 34145509 and 2097706 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34145609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17072754 + 17072755.

It is an arithmetic number, because the mean of its divisors is an integer number (17072755).

Almost surely, 2^34145509 is an apocalyptic number.

It is an amenable number.

34145509 is a deficient number, since it is larger than the sum of its proper divisors (1).

34145509 is an equidigital number, since it uses as much as digits as its factorization.

34145509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 34145509 is about 5843.4158674529. The cubic root of 34145509 is about 324.4226720871.

The spelling of 34145509 in words is "thirty-four million, one hundred forty-five thousand, five hundred nine".