82278134 has 4 divisors (see below), whose sum is σ = 123417204. Its totient is φ = 41139066.

The previous prime is 82278109. The next prime is 82278139. The reversal of 82278134 is 43187228.

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

It is a junction number, because it is equal to n+sod(n) for n = 82278094 and 82278103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82278139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20569532 + ... + 20569535.

It is an arithmetic number, because the mean of its divisors is an integer number (30854301).

Almost surely, 2^82278134 is an apocalyptic number.

82278134 is a deficient number, since it is larger than the sum of its proper divisors (41139070).

82278134 is a wasteful number, since it uses less digits than its factorization.

82278134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41139069.

The product of its digits is 21504, while the sum is 35.

The square root of 82278134 is about 9070.7295186220. The cubic root of 82278134 is about 434.9387926388.

It can be divided in two parts, 8227 and 8134, that added together give a palindrome (16361).

The spelling of 82278134 in words is "eighty-two million, two hundred seventy-eight thousand, one hundred thirty-four".