816145108 has 24 divisors (see below), whose sum is σ = 1454906880. Its totient is φ = 400487520.

The previous prime is 816145097. The next prime is 816145123. The reversal of 816145108 is 801541618.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 113385 + ... + 120367.

It is an arithmetic number, because the mean of its divisors is an integer number (60621120).

Almost surely, 2^816145108 is an apocalyptic number.

It is an amenable number.

816145108 is a deficient number, since it is larger than the sum of its proper divisors (638761772).

816145108 is a wasteful number, since it uses less digits than its factorization.

816145108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527 (or 7525 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 816145108 is about 28568.2534992953. The cubic root of 816145108 is about 934.5211339139.

It can be divided in two parts, 816 and 145108, that added together give a square (145924 = 382²).

The spelling of 816145108 in words is "eight hundred sixteen million, one hundred forty-five thousand, one hundred eight".