513360109 has 4 divisors (see below), whose sum is σ = 514503900. Its totient is φ = 512216320.

The previous prime is 513360103. The next prime is 513360119. The reversal of 513360109 is 901063315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 274564900 + 238795209 = 16570^2 + 15453^2 .

It is a cyclic number.

It is not a de Polignac number, because 513360109 - 2⁵ = 513360077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513360103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571222 + ... + 572119.

It is an arithmetic number, because the mean of its divisors is an integer number (128625975).

Almost surely, 2^513360109 is an apocalyptic number.

It is an amenable number.

513360109 is a deficient number, since it is larger than the sum of its proper divisors (1143791).

513360109 is a wasteful number, since it uses less digits than its factorization.

513360109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143790.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 513360109 is about 22657.4515115889. The cubic root of 513360109 is about 800.7077637576.

The spelling of 513360109 in words is "five hundred thirteen million, three hundred sixty thousand, one hundred nine".