520831243137 has 8 divisors (see below), whose sum is σ = 695675126304. Its totient is φ = 346604094368.

The previous prime is 520831243103. The next prime is 520831243159. The reversal of 520831243137 is 731342138025.

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

It is a cyclic number.

It is not a de Polignac number, because 520831243137 - 2¹⁴ = 520831226753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520831243095 and 520831243104.

It is not an unprimeable number, because it can be changed into a prime (520831243237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154181628 + ... + 154185005.

It is an arithmetic number, because the mean of its divisors is an integer number (86959390788).

Almost surely, 2^520831243137 is an apocalyptic number.

It is an amenable number.

520831243137 is a deficient number, since it is larger than the sum of its proper divisors (174843883167).

520831243137 is a wasteful number, since it uses less digits than its factorization.

520831243137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308367199.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 520831243137 in words is "five hundred twenty billion, eight hundred thirty-one million, two hundred forty-three thousand, one hundred thirty-seven".