8120651 has 16 divisors (see below), whose sum is σ = 10188288. Its totient is φ = 6288000.

The previous prime is 8120641. The next prime is 8120653. The reversal of 8120651 is 1560218.

It is a cyclic number.

It is not a de Polignac number, because 8120651 - 2¹⁰ = 8119627 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20051 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (636768).

Almost surely, 2^8120651 is an apocalyptic number.

8120651 is a deficient number, since it is larger than the sum of its proper divisors (2067637).

8120651 is a wasteful number, since it uses less digits than its factorization.

8120651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 8120651 is about 2849.6755955722. The cubic root of 8120651 is about 201.0004125302. Note that the first 3 decimals are identical.

Adding to 8120651 its reverse (1560218), we get a palindrome (9680869).

The spelling of 8120651 in words is "eight million, one hundred twenty thousand, six hundred fifty-one".