512748229 has 4 divisors (see below), whose sum is σ = 585997984. Its totient is φ = 439498476.

The previous prime is 512748227. The next prime is 512748233. The reversal of 512748229 is 922847215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 512748229 - 2¹ = 512748227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 512748191 and 512748200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512748227) 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, 36624867 + ... + 36624880.

It is an arithmetic number, because the mean of its divisors is an integer number (146499496).

Almost surely, 2^512748229 is an apocalyptic number.

It is an amenable number.

512748229 is a deficient number, since it is larger than the sum of its proper divisors (73249755).

512748229 is an equidigital number, since it uses as much as digits as its factorization.

512748229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73249754.

The product of its digits is 80640, while the sum is 40.

The square root of 512748229 is about 22643.9446431049. The cubic root of 512748229 is about 800.3895129230.

The spelling of 512748229 in words is "five hundred twelve million, seven hundred forty-eight thousand, two hundred twenty-nine".