520142205 has 16 divisors (see below), whose sum is σ = 907884864. Its totient is φ = 252190080.

The previous prime is 520142177. The next prime is 520142209. The reversal of 520142205 is 502241025.

It is a happy number.

It is not a de Polignac number, because 520142205 - 2¹¹ = 520140157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520142209) 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 15 ways as a sum of consecutive naturals, for example, 1576024 + ... + 1576353.

It is an arithmetic number, because the mean of its divisors is an integer number (56742804).

Almost surely, 2^520142205 is an apocalyptic number.

520142205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520142205 is a deficient number, since it is larger than the sum of its proper divisors (387742659).

520142205 is a wasteful number, since it uses less digits than its factorization.

520142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152396.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 520142205 is about 22806.6263397285. The cubic root of 520142205 is about 804.2184485375.

The spelling of 520142205 in words is "five hundred twenty million, one hundred forty-two thousand, two hundred five".