82126218 has 16 divisors (see below), whose sum is σ = 173914560. Its totient is φ = 25765056.

The previous prime is 82126211. The next prime is 82126237. The reversal of 82126218 is 81262128.

It is not an unprimeable number, because it can be changed into a prime (82126211) 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, 402478 + ... + 402681.

It is an arithmetic number, because the mean of its divisors is an integer number (10869660).

Almost surely, 2^82126218 is an apocalyptic number.

82126218 is an abundant number, since it is smaller than the sum of its proper divisors (91788342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82126218 is a wasteful number, since it uses less digits than its factorization.

82126218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805181.

The product of its digits is 3072, while the sum is 30.

The square root of 82126218 is about 9062.3516815449. The cubic root of 82126218 is about 434.6709415262.

The spelling of 82126218 in words is "eighty-two million, one hundred twenty-six thousand, two hundred eighteen".