80127261 has 24 divisors (see below), whose sum is σ = 120163680. Its totient is φ = 51389856.

The previous prime is 80127247. The next prime is 80127269. The reversal of 80127261 is 16272108.

It is not a de Polignac number, because 80127261 - 2⁶ = 80127197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80127269) 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 in 23 ways as a sum of consecutive naturals, for example, 136210 + ... + 136796.

It is an arithmetic number, because the mean of its divisors is an integer number (5006820).

Almost surely, 2^80127261 is an apocalyptic number.

It is an amenable number.

80127261 is a deficient number, since it is larger than the sum of its proper divisors (40036419).

80127261 is a wasteful number, since it uses less digits than its factorization.

80127261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 80127261 is about 8951.3831892060. The cubic root of 80127261 is about 431.1152965553.

Adding to 80127261 its reverse (16272108), we get a palindrome (96399369).

The spelling of 80127261 in words is "eighty million, one hundred twenty-seven thousand, two hundred sixty-one".