520871131 has 16 divisors (see below), whose sum is σ = 580114656. Its totient is φ = 463680000.

The previous prime is 520871107. The next prime is 520871161. The reversal of 520871131 is 131178025.

It is a cyclic number.

It is not a de Polignac number, because 520871131 - 2⁷ = 520871003 is a prime.

It is a super-2 number, since 2×520871131² = 542613470218438322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520871131.

It is not an unprimeable number, because it can be changed into a prime (520871101) 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 15 ways as a sum of consecutive naturals, for example, 160101 + ... + 163321.

It is an arithmetic number, because the mean of its divisors is an integer number (36257166).

Almost surely, 2^520871131 is an apocalyptic number.

520871131 is a deficient number, since it is larger than the sum of its proper divisors (59243525).

520871131 is a wasteful number, since it uses less digits than its factorization.

520871131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 520871131 is about 22822.6013197444. The cubic root of 520871131 is about 804.5939497651.

The spelling of 520871131 in words is "five hundred twenty million, eight hundred seventy-one thousand, one hundred thirty-one".