512134397 has 4 divisors (see below), whose sum is σ = 512183580. Its totient is φ = 512085216.

The previous prime is 512134393. The next prime is 512134409. The reversal of 512134397 is 793431215.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 174530521 + 337603876 = 13211^2 + 18374^2 .

It is a cyclic number.

It is not a de Polignac number, because 512134397 - 2² = 512134393 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 (512134393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138 + ... + 32075.

It is an arithmetic number, because the mean of its divisors is an integer number (128045895).

Almost surely, 2^512134397 is an apocalyptic number.

It is an amenable number.

512134397 is a deficient number, since it is larger than the sum of its proper divisors (49183).

512134397 is a wasteful number, since it uses less digits than its factorization.

512134397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49182.

The product of its digits is 22680, while the sum is 35.

The square root of 512134397 is about 22630.3865852972. The cubic root of 512134397 is about 800.0699923137.

The spelling of 512134397 in words is "five hundred twelve million, one hundred thirty-four thousand, three hundred ninety-seven".