80032109 has 2 divisors, whose sum is σ = 80032110. Its totient is φ = 80032108.

The previous prime is 80032091. The next prime is 80032129. The reversal of 80032109 is 90123008.

Together with previous prime (80032091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63952009 + 16080100 = 7997^2 + 4010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80032109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80032129) 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 as a sum of consecutive naturals, namely, 40016054 + 40016055.

It is an arithmetic number, because the mean of its divisors is an integer number (40016055).

Almost surely, 2^80032109 is an apocalyptic number.

It is an amenable number.

80032109 is a deficient number, since it is larger than the sum of its proper divisors (1).

80032109 is an equidigital number, since it uses as much as digits as its factorization.

80032109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 80032109 is about 8946.0666775964. The cubic root of 80032109 is about 430.9445775818.

The spelling of 80032109 in words is "eighty million, thirty-two thousand, one hundred nine".