513140028 has 24 divisors (see below), whose sum is σ = 1249385088. Its totient is φ = 163609776.

The previous prime is 513140021. The next prime is 513140029. The reversal of 513140028 is 820041315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513140021) 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 7 ways as a sum of consecutive naturals, for example, 929326 + ... + 929877.

It is an arithmetic number, because the mean of its divisors is an integer number (52057712).

Almost surely, 2^513140028 is an apocalyptic number.

It is an amenable number.

513140028 is an abundant number, since it is smaller than the sum of its proper divisors (736245060).

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

513140028 is a wasteful number, since it uses less digits than its factorization.

513140028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859233 (or 1859231 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 513140028 is about 22652.5942885136. The cubic root of 513140028 is about 800.5933244322.

The spelling of 513140028 in words is "five hundred thirteen million, one hundred forty thousand, twenty-eight".