81484127 has 8 divisors (see below), whose sum is σ = 82905600. Its totient is φ = 80068824.

The previous prime is 81484121. The next prime is 81484153. The reversal of 81484127 is 72148418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 81484127 - 2¹⁸ = 81221983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81484121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30824 + ... + 33362.

It is an arithmetic number, because the mean of its divisors is an integer number (10363200).

Almost surely, 2^81484127 is an apocalyptic number.

81484127 is a deficient number, since it is larger than the sum of its proper divisors (1421473).

81484127 is a wasteful number, since it uses less digits than its factorization.

81484127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its digits is 14336, while the sum is 35.

The square root of 81484127 is about 9026.8558756635. The cubic root of 81484127 is about 433.5351741495.

The spelling of 81484127 in words is "eighty-one million, four hundred eighty-four thousand, one hundred twenty-seven".