513520341 has 4 divisors (see below), whose sum is σ = 684693792. Its totient is φ = 342346892.

The previous prime is 513520327. The next prime is 513520417. The reversal of 513520341 is 143025315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513520341 - 2¹⁷ = 513389269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513520321) 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, 85586721 + ... + 85586726.

It is an arithmetic number, because the mean of its divisors is an integer number (171173448).

Almost surely, 2^513520341 is an apocalyptic number.

It is an amenable number.

513520341 is a deficient number, since it is larger than the sum of its proper divisors (171173451).

513520341 is a wasteful number, since it uses less digits than its factorization.

513520341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171173450.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 513520341 is about 22660.9872026794. The cubic root of 513520341 is about 800.7910617896.

Adding to 513520341 its reverse (143025315), we get a palindrome (656545656).

The spelling of 513520341 in words is "five hundred thirteen million, five hundred twenty thousand, three hundred forty-one".