80651 has 2 divisors, whose sum is σ = 80652. Its totient is φ = 80650.

The previous prime is 80629. The next prime is 80657. The reversal of 80651 is 15608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80651 - 2¹⁰ = 79627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 80651.

It is not a weakly prime, because it can be changed into another prime (80657) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40325 + 40326.

It is an arithmetic number, because the mean of its divisors is an integer number (40326).

2⁸⁰⁶⁵¹ is an apocalyptic number.

80651 is a deficient number, since it is larger than the sum of its proper divisors (1).

80651 is an equidigital number, since it uses as much as digits as its factorization.

80651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 80651 is about 283.9911970467. The cubic root of 80651 is about 43.2052562763.

The spelling of 80651 in words is "eighty thousand, six hundred fifty-one".