512115101 has 2 divisors, whose sum is σ = 512115102. Its totient is φ = 512115100.

The previous prime is 512115083. The next prime is 512115139. The reversal of 512115101 is 101511215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374616025 + 137499076 = 19355^2 + 11726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512115101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 512115101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512115001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256057550 + 256057551.

It is an arithmetic number, because the mean of its divisors is an integer number (256057551).

Almost surely, 2^512115101 is an apocalyptic number.

It is an amenable number.

512115101 is a deficient number, since it is larger than the sum of its proper divisors (1).

512115101 is an equidigital number, since it uses as much as digits as its factorization.

512115101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 512115101 is about 22629.9602518431. The cubic root of 512115101 is about 800.0599439458.

Adding to 512115101 its reverse (101511215), we get a palindrome (613626316).

The spelling of 512115101 in words is "five hundred twelve million, one hundred fifteen thousand, one hundred one".