512947243 has 8 divisors (see below), whose sum is σ = 534676112. Its totient is φ = 491632416.

The previous prime is 512947213. The next prime is 512947247. The reversal of 512947243 is 342749215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512947243 is a prime.

It is a super-2 number, since 2×512947243² = 526229748202602098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512947247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100980 + ... + 105937.

It is an arithmetic number, because the mean of its divisors is an integer number (66834514).

Almost surely, 2^512947243 is an apocalyptic number.

512947243 is a deficient number, since it is larger than the sum of its proper divisors (21728869).

512947243 is a wasteful number, since it uses less digits than its factorization.

512947243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207021.

The product of its digits is 60480, while the sum is 37.

The square root of 512947243 is about 22648.3386366418. The cubic root of 512947243 is about 800.4930517917.

The spelling of 512947243 in words is "five hundred twelve million, nine hundred forty-seven thousand, two hundred forty-three".