82120214 has 16 divisors (see below), whose sum is σ = 136915920. Its totient is φ = 36622560.

The previous prime is 82120187. The next prime is 82120219. The reversal of 82120214 is 41202128.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82120219) 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, 34049 + ... + 36380.

It is an arithmetic number, because the mean of its divisors is an integer number (8557245).

Almost surely, 2^82120214 is an apocalyptic number.

82120214 is a deficient number, since it is larger than the sum of its proper divisors (54795706).

82120214 is a wasteful number, since it uses less digits than its factorization.

82120214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70495.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 82120214 is about 9062.0204148964. The cubic root of 82120214 is about 434.6603487744.

The spelling of 82120214 in words is "eighty-two million, one hundred twenty thousand, two hundred fourteen".