512120464 has 10 divisors (see below), whose sum is σ = 992233430. Its totient is φ = 256060224.

The previous prime is 512120443. The next prime is 512120473. The reversal of 512120464 is 464021215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 330948864 + 181171600 = 18192^2 + 13460^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16003749 + ... + 16003780.

It is an arithmetic number, because the mean of its divisors is an integer number (99223343).

Almost surely, 2^512120464 is an apocalyptic number.

It is an amenable number.

512120464 is a deficient number, since it is larger than the sum of its proper divisors (480112966).

512120464 is a wasteful number, since it uses less digits than its factorization.

512120464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32007537 (or 32007531 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 512120464 is about 22630.0787448917. The cubic root of 512120464 is about 800.0627367467.

Adding to 512120464 its reverse (464021215), we get a palindrome (976141679).

The spelling of 512120464 in words is "five hundred twelve million, one hundred twenty thousand, four hundred sixty-four".