80138843 has 2 divisors, whose sum is σ = 80138844. Its totient is φ = 80138842.

The previous prime is 80138819. The next prime is 80138869. The reversal of 80138843 is 34883108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80138843 - 2¹⁶ = 80073307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80138873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40069421 + 40069422.

It is an arithmetic number, because the mean of its divisors is an integer number (40069422).

Almost surely, 2^80138843 is an apocalyptic number.

80138843 is a deficient number, since it is larger than the sum of its proper divisors (1).

80138843 is an equidigital number, since it uses as much as digits as its factorization.

80138843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 80138843 is about 8952.0301049538. The cubic root of 80138843 is about 431.1360674172.

The spelling of 80138843 in words is "eighty million, one hundred thirty-eight thousand, eight hundred forty-three".