82818122 has 4 divisors (see below), whose sum is σ = 124227186. Its totient is φ = 41409060.

The previous prime is 82818121. The next prime is 82818137. The reversal of 82818122 is 22181828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75359761 + 7458361 = 8681^2 + 2731^2 .

It is not an unprimeable number, because it can be changed into a prime (82818121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20704529 + ... + 20704532.

Almost surely, 2^82818122 is an apocalyptic number.

82818122 is a deficient number, since it is larger than the sum of its proper divisors (41409064).

82818122 is a wasteful number, since it uses less digits than its factorization.

82818122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41409063.

The product of its digits is 4096, while the sum is 32.

The square root of 82818122 is about 9100.4462527944. The cubic root of 82818122 is about 435.8882137734. Note that the first 3 decimals are identical.

The spelling of 82818122 in words is "eighty-two million, eight hundred eighteen thousand, one hundred twenty-two".