6868151 has 4 divisors (see below), whose sum is σ = 6874392. Its totient is φ = 6861912.

The previous prime is 6868133. The next prime is 6868163. The reversal of 6868151 is 1518686.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6868151 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 (6838151) 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, 980 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (1718598).

Almost surely, 2^6868151 is an apocalyptic number.

6868151 is a deficient number, since it is larger than the sum of its proper divisors (6241).

6868151 is a wasteful number, since it uses less digits than its factorization.

6868151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240.

The product of its digits is 11520, while the sum is 35.

The square root of 6868151 is about 2620.7157419301. The cubic root of 6868151 is about 190.0844592187.

The spelling of 6868151 in words is "six million, eight hundred sixty-eight thousand, one hundred fifty-one".