82140173 has 8 divisors (see below), whose sum is σ = 89253120. Its totient is φ = 75306240.

The previous prime is 82140143. The next prime is 82140181. The reversal of 82140173 is 37104128.

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 82140173 - 2⁶ = 82140109 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 (82140103) 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 7 ways as a sum of consecutive naturals, for example, 69140 + ... + 70317.

It is an arithmetic number, because the mean of its divisors is an integer number (11156640).

Almost surely, 2^82140173 is an apocalyptic number.

It is an amenable number.

82140173 is a deficient number, since it is larger than the sum of its proper divisors (7112947).

82140173 is a wasteful number, since it uses less digits than its factorization.

82140173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139507.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 82140173 is about 9063.1215924757. The cubic root of 82140173 is about 434.6955600934.

The spelling of 82140173 in words is "eighty-two million, one hundred forty thousand, one hundred seventy-three".