72015180 has 24 divisors (see below), whose sum is σ = 201642672. Its totient is φ = 19204032.

The previous prime is 72015169. The next prime is 72015191. The reversal of 72015180 is 8151027.

It is an interprime number because it is at equal distance from previous prime (72015169) and next prime (72015191).

It is a self number, because there is not a number n which added to its sum of digits gives 72015180.

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, 600067 + ... + 600186.

It is an arithmetic number, because the mean of its divisors is an integer number (8401778).

Almost surely, 2^72015180 is an apocalyptic number.

It is an amenable number.

72015180 is an abundant number, since it is smaller than the sum of its proper divisors (129627492).

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

72015180 is a wasteful number, since it uses less digits than its factorization.

72015180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200265 (or 1200263 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 72015180 is about 8486.1758171747. The cubic root of 72015180 is about 416.0459992897.

The spelling of 72015180 in words is "seventy-two million, fifteen thousand, one hundred eighty".