520545134 has 8 divisors (see below), whose sum is σ = 826748208. Its totient is φ = 244962400.

The previous prime is 520545121. The next prime is 520545139. The reversal of 520545134 is 431545025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520545097 and 520545106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520545139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7655042 + ... + 7655109.

It is an arithmetic number, because the mean of its divisors is an integer number (103343526).

Almost surely, 2^520545134 is an apocalyptic number.

520545134 is a deficient number, since it is larger than the sum of its proper divisors (306203074).

520545134 is a wasteful number, since it uses less digits than its factorization.

520545134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310170.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 520545134 is about 22815.4582246336. The cubic root of 520545134 is about 804.4260579789.

The spelling of 520545134 in words is "five hundred twenty million, five hundred forty-five thousand, one hundred thirty-four".