513140009 has 2 divisors, whose sum is σ = 513140010. Its totient is φ = 513140008.

The previous prime is 513139981. The next prime is 513140021. The reversal of 513140009 is 900041315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491952400 + 21187609 = 22180^2 + 4603^2 .

It is a cyclic number.

It is not a de Polignac number, because 513140009 - 2¹⁶ = 513074473 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (513140029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256570004 + 256570005.

It is an arithmetic number, because the mean of its divisors is an integer number (256570005).

Almost surely, 2^513140009 is an apocalyptic number.

It is an amenable number.

513140009 is a deficient number, since it is larger than the sum of its proper divisors (1).

513140009 is an equidigital number, since it uses as much as digits as its factorization.

513140009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 513140009 is about 22652.5938691356. The cubic root of 513140009 is about 800.5933145510.

The spelling of 513140009 in words is "five hundred thirteen million, one hundred forty thousand, nine".