6503148531 has 32 divisors (see below), whose sum is σ = 10603203840. Its totient is φ = 3906403200.

The previous prime is 6503148493. The next prime is 6503148551. The reversal of 6503148531 is 1358413056.

6503148531 is a `hidden beast` number, since 6 + 50 + 31 + 48 + 531 = 666.

It is not a de Polignac number, because 6503148531 - 2⁹ = 6503148019 is a prime.

It is a super-2 number, since 2×6503148531² = 84581881632494915922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6503148551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63325 + ... + 130446.

It is an arithmetic number, because the mean of its divisors is an integer number (331350120).

Almost surely, 2^6503148531 is an apocalyptic number.

6503148531 is a deficient number, since it is larger than the sum of its proper divisors (4100055309).

6503148531 is a wasteful number, since it uses less digits than its factorization.

6503148531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193904 (or 193898 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6503148531 is about 80642.1014793141. The cubic root of 6503148531 is about 1866.5568612315.

The spelling of 6503148531 in words is "six billion, five hundred three million, one hundred forty-eight thousand, five hundred thirty-one".