82130090 has 32 divisors (see below), whose sum is σ = 170864640. Its totient is φ = 27840384.

The previous prime is 82130089. The next prime is 82130101. The reversal of 82130090 is 9003128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362 + ... + 12821.

It is an arithmetic number, because the mean of its divisors is an integer number (5339520).

Almost surely, 2^82130090 is an apocalyptic number.

82130090 is an abundant number, since it is smaller than the sum of its proper divisors (88734550).

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

82130090 is a wasteful number, since it uses less digits than its factorization.

82130090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13286.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 82130090 is about 9062.5653101095. The cubic root of 82130090 is about 434.6777725540.

The spelling of 82130090 in words is "eighty-two million, one hundred thirty thousand, ninety".