512720071 has 8 divisors (see below), whose sum is σ = 535306464. Its totient is φ = 490158240.

The previous prime is 512720069. The next prime is 512720093. The reversal of 512720071 is 170027215.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 512720071 - 2¹ = 512720069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512720041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46065 + ... + 56101.

It is an arithmetic number, because the mean of its divisors is an integer number (66913308).

Almost surely, 2^512720071 is an apocalyptic number.

512720071 is a deficient number, since it is larger than the sum of its proper divisors (22586393).

512720071 is a wasteful number, since it uses less digits than its factorization.

512720071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 512720071 is about 22643.3228789416. The cubic root of 512720071 is about 800.3748613005.

Adding to 512720071 its reverse (170027215), we get a palindrome (682747286).

The spelling of 512720071 in words is "five hundred twelve million, seven hundred twenty thousand, seventy-one".