82139094 has 24 divisors (see below), whose sum is σ = 178754160. Its totient is φ = 27258768.

The previous prime is 82139077. The next prime is 82139137. The reversal of 82139094 is 49093128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5842 + ... + 14085.

It is an arithmetic number, because the mean of its divisors is an integer number (7448090).

Almost surely, 2^82139094 is an apocalyptic number.

82139094 is an abundant number, since it is smaller than the sum of its proper divisors (96615066).

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

82139094 is a wasteful number, since it uses less digits than its factorization.

82139094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20164 (or 20161 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 82139094 is about 9063.0620653287. The cubic root of 82139094 is about 434.6936566864.

The spelling of 82139094 in words is "eighty-two million, one hundred thirty-nine thousand, ninety-four".