82108155 has 8 divisors (see below), whose sum is σ = 131373072. Its totient is φ = 43791008.

The previous prime is 82108141. The next prime is 82108157. The reversal of 82108155 is 55180128.

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 82108155 - 2⁵ = 82108123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82108157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2736924 + ... + 2736953.

It is an arithmetic number, because the mean of its divisors is an integer number (16421634).

Almost surely, 2^82108155 is an apocalyptic number.

82108155 is a deficient number, since it is larger than the sum of its proper divisors (49264917).

82108155 is a wasteful number, since it uses less digits than its factorization.

82108155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473885.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 82108155 is about 9061.3550311198. The cubic root of 82108155 is about 434.6390717324.

The spelling of 82108155 in words is "eighty-two million, one hundred eight thousand, one hundred fifty-five".