512115343 has 2 divisors, whose sum is σ = 512115344. Its totient is φ = 512115342.

The previous prime is 512115323. The next prime is 512115347. The reversal of 512115343 is 343511215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512115343 - 2²¹ = 510018191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512115347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256057671 + 256057672.

It is an arithmetic number, because the mean of its divisors is an integer number (256057672).

Almost surely, 2^512115343 is an apocalyptic number.

512115343 is a deficient number, since it is larger than the sum of its proper divisors (1).

512115343 is an equidigital number, since it uses as much as digits as its factorization.

512115343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 512115343 is about 22629.9655987366. The cubic root of 512115343 is about 800.0600699686.

Adding to 512115343 its reverse (343511215), we get a palindrome (855626558).

The spelling of 512115343 in words is "five hundred twelve million, one hundred fifteen thousand, three hundred forty-three".