6499156 has 24 divisors (see below), whose sum is σ = 12164544. Its totient is φ = 3030720.

The previous prime is 6499147. The next prime is 6499169. The reversal of 6499156 is 6519946.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911 + ... + 4633.

It is an arithmetic number, because the mean of its divisors is an integer number (506856).

Almost surely, 2^6499156 is an apocalyptic number.

It is an amenable number.

6499156 is a deficient number, since it is larger than the sum of its proper divisors (5665388).

6499156 is a wasteful number, since it uses less digits than its factorization.

6499156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1789 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 6499156 is about 2549.3442294049. The cubic root of 6499156 is about 186.6174799543.

The spelling of 6499156 in words is "six million, four hundred ninety-nine thousand, one hundred fifty-six".