82158332 has 12 divisors (see below), whose sum is σ = 144910080. Its totient is φ = 40755456.

The previous prime is 82158319. The next prime is 82158343. The reversal of 82158332 is 23385128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80357 + ... + 81372.

It is an arithmetic number, because the mean of its divisors is an integer number (12075840).

Almost surely, 2^82158332 is an apocalyptic number.

It is an amenable number.

82158332 is a deficient number, since it is larger than the sum of its proper divisors (62751748).

82158332 is a wasteful number, since it uses less digits than its factorization.

82158332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161860 (or 161858 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 82158332 is about 9064.1233442623. The cubic root of 82158332 is about 434.7275909287.

The spelling of 82158332 in words is "eighty-two million, one hundred fifty-eight thousand, three hundred thirty-two".