520169071 has 2 divisors, whose sum is σ = 520169072. Its totient is φ = 520169070.

The previous prime is 520169033. The next prime is 520169087. The reversal of 520169071 is 170961025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520169071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520169371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260084535 + 260084536.

It is an arithmetic number, because the mean of its divisors is an integer number (260084536).

Almost surely, 2^520169071 is an apocalyptic number.

520169071 is a deficient number, since it is larger than the sum of its proper divisors (1).

520169071 is an equidigital number, since it uses as much as digits as its factorization.

520169071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 520169071 is about 22807.2153276107. The cubic root of 520169071 is about 804.2322945977.

The spelling of 520169071 in words is "five hundred twenty million, one hundred sixty-nine thousand, seventy-one".