512912128 has 54 divisors (see below), whose sum is σ = 1047220916. Its totient is φ = 250722816.

The previous prime is 512912123. The next prime is 512912129. The reversal of 512912128 is 821219215.

It is a self number, because there is not a number n which added to its sum of digits gives 512912128.

It is not an unprimeable number, because it can be changed into a prime (512912123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565051 + ... + 565957.

Almost surely, 2^512912128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512912128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523610458).

512912128 is an abundant number, since it is smaller than the sum of its proper divisors (534308788).

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

512912128 is an frugal number, since it uses more digits than its factorization.

512912128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 956 counting only the distinct ones).

The product of its digits is 2880, while the sum is 31.

The square root of 512912128 is about 22647.5634009489. The cubic root of 512912128 is about 800.4747848351.

The spelling of 512912128 in words is "five hundred twelve million, nine hundred twelve thousand, one hundred twenty-eight".