82149188 has 48 divisors (see below), whose sum is σ = 161323008. Its totient is φ = 36288000.

The previous prime is 82149157. The next prime is 82149239. The reversal of 82149188 is 88194128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340748 + ... + 340988.

It is an arithmetic number, because the mean of its divisors is an integer number (3360896).

Almost surely, 2^82149188 is an apocalyptic number.

It is an amenable number.

82149188 is a deficient number, since it is larger than the sum of its proper divisors (79173820).

82149188 is a wasteful number, since it uses less digits than its factorization.

82149188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its digits is 36864, while the sum is 41.

The square root of 82149188 is about 9063.6189240281. The cubic root of 82149188 is about 434.7114623289.

The spelling of 82149188 in words is "eighty-two million, one hundred forty-nine thousand, one hundred eighty-eight".