82148571 has 24 divisors (see below), whose sum is σ = 130341120. Its totient is φ = 49625136.

The previous prime is 82148557. The next prime is 82148611. The reversal of 82148571 is 17584128.

82148571 is a `hidden beast` number, since 82 + 1 + 4 + 8 + 571 = 666.

It is not a de Polignac number, because 82148571 - 2¹¹ = 82146523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82148971) 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 23 ways as a sum of consecutive naturals, for example, 6511 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (5430880).

Almost surely, 2^82148571 is an apocalyptic number.

82148571 is a deficient number, since it is larger than the sum of its proper divisors (48192549).

82148571 is a wasteful number, since it uses less digits than its factorization.

82148571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20935 (or 20932 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 82148571 is about 9063.5848867873. The cubic root of 82148571 is about 434.7103739934.

The spelling of 82148571 in words is "eighty-two million, one hundred forty-eight thousand, five hundred seventy-one".