82932181 has 4 divisors (see below), whose sum is σ = 86537952. Its totient is φ = 79326412.

The previous prime is 82932163. The next prime is 82932203. The reversal of 82932181 is 18123928.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82932181 - 2¹³ = 82923989 is a prime.

It is a super-2 number, since 2×82932181² = 13755493290833522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82932481) 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, 1802851 + ... + 1802896.

It is an arithmetic number, because the mean of its divisors is an integer number (21634488).

Almost surely, 2^82932181 is an apocalyptic number.

It is an amenable number.

82932181 is a deficient number, since it is larger than the sum of its proper divisors (3605771).

82932181 is a wasteful number, since it uses less digits than its factorization.

82932181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605770.

The product of its digits is 6912, while the sum is 34.

The square root of 82932181 is about 9106.7107673408. The cubic root of 82932181 is about 436.0882270324.

The spelling of 82932181 in words is "eighty-two million, nine hundred thirty-two thousand, one hundred eighty-one".