512143998 has 16 divisors (see below), whose sum is σ = 1024855680. Its totient is φ = 170620056.

The previous prime is 512143991. The next prime is 512144027. The reversal of 512143998 is 899341215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512143991) 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, 11440 + ... + 33987.

It is an arithmetic number, because the mean of its divisors is an integer number (64053480).

Almost surely, 2^512143998 is an apocalyptic number.

512143998 is an abundant number, since it is smaller than the sum of its proper divisors (512711682).

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

512143998 is a wasteful number, since it uses less digits than its factorization.

512143998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47311.

The product of its digits is 77760, while the sum is 42.

The square root of 512143998 is about 22630.5987105954. The cubic root of 512143998 is about 800.0749919284.

The spelling of 512143998 in words is "five hundred twelve million, one hundred forty-three thousand, nine hundred ninety-eight".