72152008 has 8 divisors (see below), whose sum is σ = 135285030. Its totient is φ = 36076000.

The previous prime is 72151999. The next prime is 72152011. The reversal of 72152008 is 80025127.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 20052484 = 7218^2 + 4478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4509493 + ... + 4509508.

Almost surely, 2^72152008 is an apocalyptic number.

It is an amenable number.

72152008 is a deficient number, since it is larger than the sum of its proper divisors (63133022).

72152008 is a wasteful number, since it uses less digits than its factorization.

72152008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019007 (or 9019003 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 72152008 is about 8494.2338088847. The cubic root of 72152008 is about 416.3093267651.

The spelling of 72152008 in words is "seventy-two million, one hundred fifty-two thousand, eight".