82135858 has 24 divisors (see below), whose sum is σ = 144606492. Its totient is φ = 34884864.

The previous prime is 82135843. The next prime is 82135861. The reversal of 82135858 is 85853128.

It can be written as a sum of positive squares in 2 ways, for example, as 80156209 + 1979649 = 8953^2 + 1407^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 82135858.

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 11 ways as a sum of consecutive naturals, for example, 7366 + ... + 14782.

Almost surely, 2^82135858 is an apocalyptic number.

82135858 is a deficient number, since it is larger than the sum of its proper divisors (62470634).

82135858 is a wasteful number, since it uses less digits than its factorization.

82135858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546 (or 7539 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 82135858 is about 9062.8835367117. The cubic root of 82135858 is about 434.6879481292.

The spelling of 82135858 in words is "eighty-two million, one hundred thirty-five thousand, eight hundred fifty-eight".