38519009 has 2 divisors, whose sum is σ = 38519010. Its totient is φ = 38519008.

The previous prime is 38519003. The next prime is 38519017. The reversal of 38519009 is 90091583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37173409 + 1345600 = 6097^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 38519009 - 2⁴ = 38518993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38519009.

It is not a weakly prime, because it can be changed into another prime (38519003) 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, 19259504 + 19259505.

It is an arithmetic number, because the mean of its divisors is an integer number (19259505).

Almost surely, 2^38519009 is an apocalyptic number.

It is an amenable number.

38519009 is a deficient number, since it is larger than the sum of its proper divisors (1).

38519009 is an equidigital number, since it uses as much as digits as its factorization.

38519009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 38519009 is about 6206.3684228379. The cubic root of 38519009 is about 337.7212347363.

The spelling of 38519009 in words is "thirty-eight million, five hundred nineteen thousand, nine".