82175512 has 16 divisors (see below), whose sum is σ = 154266840. Its totient is φ = 41037696.

The previous prime is 82175497. The next prime is 82175539. The reversal of 82175512 is 21557128.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1248 + ... + 12880.

Almost surely, 2^82175512 is an apocalyptic number.

It is an amenable number.

82175512 is a deficient number, since it is larger than the sum of its proper divisors (72091328).

82175512 is a wasteful number, since it uses less digits than its factorization.

82175512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522 (or 12518 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 82175512 is about 9065.0709870359. The cubic root of 82175512 is about 434.7578905519.

The spelling of 82175512 in words is "eighty-two million, one hundred seventy-five thousand, five hundred twelve".