82140826 has 4 divisors (see below), whose sum is σ = 123211242. Its totient is φ = 41070412.

The previous prime is 82140809. The next prime is 82140833. The reversal of 82140826 is 62804128.

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

It can be written as a sum of positive squares in only one way, i.e., 58140625 + 24000201 = 7625^2 + 4899^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20535205 + ... + 20535208.

Almost surely, 2^82140826 is an apocalyptic number.

82140826 is a deficient number, since it is larger than the sum of its proper divisors (41070416).

82140826 is a wasteful number, since it uses less digits than its factorization.

82140826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41070415.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 82140826 is about 9063.1576175194. The cubic root of 82140826 is about 434.6967120083.

The spelling of 82140826 in words is "eighty-two million, one hundred forty thousand, eight hundred twenty-six".