6499151 has 4 divisors (see below), whose sum is σ = 6881472. Its totient is φ = 6116832.

The previous prime is 6499147. The next prime is 6499169. The reversal of 6499151 is 1519946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1519946 = 2 ⋅759973.

It is a cyclic number.

It is not a de Polignac number, because 6499151 - 2² = 6499147 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 (6499111) 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 3 ways as a sum of consecutive naturals, for example, 191135 + ... + 191168.

It is an arithmetic number, because the mean of its divisors is an integer number (1720368).

Almost surely, 2^6499151 is an apocalyptic number.

6499151 is a deficient number, since it is larger than the sum of its proper divisors (382321).

6499151 is a wasteful number, since it uses less digits than its factorization.

6499151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382320.

The product of its digits is 9720, while the sum is 35.

The square root of 6499151 is about 2549.3432487604. The cubic root of 6499151 is about 186.6174320974.

The spelling of 6499151 in words is "six million, four hundred ninety-nine thousand, one hundred fifty-one".