6512157 has 14 divisors (see below), whose sum is σ = 9764862. Its totient is φ = 4340952.

The previous prime is 6512147. The next prime is 6512159. The reversal of 6512157 is 7512156.

6512157 is a `hidden beast` number, since 651 + 2 + 1 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4901796 + 1610361 = 2214^2 + 1269^2 .

It is not a de Polignac number, because 6512157 - 2¹⁰ = 6511133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6512157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3738 + ... + 5195.

Almost surely, 2^6512157 is an apocalyptic number.

It is an amenable number.

6512157 is a deficient number, since it is larger than the sum of its proper divisors (3252705).

6512157 is an frugal number, since it uses more digits than its factorization.

6512157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951 (or 8936 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 6512157 is about 2551.8928269032. The cubic root of 6512157 is about 186.7418344521.

Subtracting 6512157 from its reverse (7512156), we obtain a palindrome (999999).

The spelling of 6512157 in words is "six million, five hundred twelve thousand, one hundred fifty-seven".