82280136 has 32 divisors (see below), whose sum is σ = 217801440. Its totient is φ = 25813248.

The previous prime is 82280129. The next prime is 82280137. The reversal of 82280136 is 63108228.

It is not an unprimeable number, because it can be changed into a prime (82280137) 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, 100426 + ... + 101241.

It is an arithmetic number, because the mean of its divisors is an integer number (6806295).

Almost surely, 2^82280136 is an apocalyptic number.

It is an amenable number.

82280136 is an abundant number, since it is smaller than the sum of its proper divisors (135521304).

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

82280136 is a wasteful number, since it uses less digits than its factorization.

82280136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201693 (or 201689 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 82280136 is about 9070.8398729114. The cubic root of 82280136 is about 434.9423202687.

The spelling of 82280136 in words is "eighty-two million, two hundred eighty thousand, one hundred thirty-six".