82152179 has 4 divisors (see below), whose sum is σ = 83192160. Its totient is φ = 81112200.

The previous prime is 82152137. The next prime is 82152209. The reversal of 82152179 is 97125128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82152179 is a prime.

It is a super-3 number, since 3×82152179³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82155179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519872 + ... + 520029.

It is an arithmetic number, because the mean of its divisors is an integer number (20798040).

Almost surely, 2^82152179 is an apocalyptic number.

82152179 is a deficient number, since it is larger than the sum of its proper divisors (1039981).

82152179 is a wasteful number, since it uses less digits than its factorization.

82152179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039980.

The product of its digits is 10080, while the sum is 35.

The square root of 82152179 is about 9063.7839228437. The cubic root of 82152179 is about 434.7167381214.

The spelling of 82152179 in words is "eighty-two million, one hundred fifty-two thousand, one hundred seventy-nine".