816287148 has 18 divisors (see below), whose sum is σ = 2063392604. Its totient is φ = 272095704.

The previous prime is 816287141. The next prime is 816287167. The reversal of 816287148 is 841782618.

816287148 is a `hidden beast` number, since 8 + 1 + 628 + 7 + 14 + 8 = 666.

816287148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (816287141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11337286 + ... + 11337357.

Almost surely, 2^816287148 is an apocalyptic number.

It is an amenable number.

816287148 is an abundant number, since it is smaller than the sum of its proper divisors (1247105456).

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

816287148 is a wasteful number, since it uses less digits than its factorization.

816287148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22674653 (or 22674648 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 816287148 is about 28570.7393674017. The cubic root of 816287148 is about 934.5753447320.

The spelling of 816287148 in words is "eight hundred sixteen million, two hundred eighty-seven thousand, one hundred forty-eight".