72150008 has 16 divisors (see below), whose sum is σ = 154607280. Its totient is φ = 30921408.

The previous prime is 72149983. The next prime is 72150047. The reversal of 72150008 is 80005127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644141 + ... + 644252.

It is an arithmetic number, because the mean of its divisors is an integer number (9662955).

Almost surely, 2^72150008 is an apocalyptic number.

It is an amenable number.

72150008 is an abundant number, since it is smaller than the sum of its proper divisors (82457272).

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

72150008 is a wasteful number, since it uses less digits than its factorization.

72150008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288406 (or 1288402 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 72150008 is about 8494.1160811470. The cubic root of 72150008 is about 416.3054801345.

The spelling of 72150008 in words is "seventy-two million, one hundred fifty thousand, eight".