80129843 has 2 divisors, whose sum is σ = 80129844. Its totient is φ = 80129842.

The previous prime is 80129801. The next prime is 80129851. The reversal of 80129843 is 34892108.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80129843 - 2¹⁰ = 80128819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80129873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40064921 + 40064922.

It is an arithmetic number, because the mean of its divisors is an integer number (40064922).

Almost surely, 2^80129843 is an apocalyptic number.

80129843 is a deficient number, since it is larger than the sum of its proper divisors (1).

80129843 is an equidigital number, since it uses as much as digits as its factorization.

80129843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80129843 is about 8951.5274115650. The cubic root of 80129843 is about 431.1199272213.

The spelling of 80129843 in words is "eighty million, one hundred twenty-nine thousand, eight hundred forty-three".