513942160 has 20 divisors (see below), whose sum is σ = 1194915708. Its totient is φ = 205576832.

The previous prime is 513942157. The next prime is 513942179. The reversal of 513942160 is 61249315.

It can be written as a sum of positive squares in 2 ways, for example, as 309337744 + 204604416 = 17588^2 + 14304^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3212059 + ... + 3212218.

Almost surely, 2^513942160 is an apocalyptic number.

It is an amenable number.

513942160 is an abundant number, since it is smaller than the sum of its proper divisors (680973548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513942160 is a wasteful number, since it uses less digits than its factorization.

513942160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424290 (or 6424284 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 513942160 is about 22670.2924551052. The cubic root of 513942160 is about 801.0102653346.

The spelling of 513942160 in words is "five hundred thirteen million, nine hundred forty-two thousand, one hundred sixty".