80244191 has 2 divisors, whose sum is σ = 80244192. Its totient is φ = 80244190.

The previous prime is 80244187. The next prime is 80244209. The reversal of 80244191 is 19144208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80244191 - 2² = 80244187 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80244161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40122095 + 40122096.

It is an arithmetic number, because the mean of its divisors is an integer number (40122096).

Almost surely, 2^80244191 is an apocalyptic number.

80244191 is a deficient number, since it is larger than the sum of its proper divisors (1).

80244191 is an equidigital number, since it uses as much as digits as its factorization.

80244191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 80244191 is about 8957.9122009540. The cubic root of 80244191 is about 431.3249039954.

Adding to 80244191 its reverse (19144208), we get a palindrome (99388399).

The spelling of 80244191 in words is "eighty million, two hundred forty-four thousand, one hundred ninety-one".