6512131057 has 4 divisors (see below), whose sum is σ = 6546226176. Its totient is φ = 6478035940.

The previous prime is 6512131039. The next prime is 6512131069. The reversal of 6512131057 is 7501312156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6512131057 - 2¹¹ = 6512129009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6512131007) 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, 17047273 + ... + 17047654.

It is an arithmetic number, because the mean of its divisors is an integer number (1636556544).

Almost surely, 2^6512131057 is an apocalyptic number.

It is an amenable number.

6512131057 is a deficient number, since it is larger than the sum of its proper divisors (34095119).

6512131057 is a wasteful number, since it uses less digits than its factorization.

6512131057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34095118.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 6512131057 is about 80697.7760350309. The cubic root of 6512131057 is about 1867.4158647230.

The spelling of 6512131057 in words is "six billion, five hundred twelve million, one hundred thirty-one thousand, fifty-seven".