512749122 has 8 divisors (see below), whose sum is σ = 1025498256. Its totient is φ = 170916372.

The previous prime is 512749109. The next prime is 512749123. The reversal of 512749122 is 221947215.

It is a sphenic number, since it is the product of 3 distinct primes.

512749122 is an admirable number.

It is a super-2 number, since 2×512749122² = 525823324223541768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512749123) 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 3 ways as a sum of consecutive naturals, for example, 42729088 + ... + 42729099.

It is an arithmetic number, because the mean of its divisors is an integer number (128187282).

Almost surely, 2^512749122 is an apocalyptic number.

512749122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

512749122 is a wasteful number, since it uses less digits than its factorization.

512749122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85458192.

The product of its digits is 10080, while the sum is 33.

The square root of 512749122 is about 22643.9643613922. The cubic root of 512749122 is about 800.3899775743.

The spelling of 512749122 in words is "five hundred twelve million, seven hundred forty-nine thousand, one hundred twenty-two".