512149868 has 12 divisors (see below), whose sum is σ = 898394112. Its totient is φ = 255465840.

The previous prime is 512149867. The next prime is 512149873. The reversal of 512149868 is 868941215.

It is not an unprimeable number, because it can be changed into a prime (512149867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150380 + ... + 153747.

It is an arithmetic number, because the mean of its divisors is an integer number (74866176).

Almost surely, 2^512149868 is an apocalyptic number.

It is an amenable number.

512149868 is a deficient number, since it is larger than the sum of its proper divisors (386244244).

512149868 is a wasteful number, since it uses less digits than its factorization.

512149868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304552 (or 304550 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 512149868 is about 22630.7284018876. The cubic root of 512149868 is about 800.0780486353.

The spelling of 512149868 in words is "five hundred twelve million, one hundred forty-nine thousand, eight hundred sixty-eight".