72075170 has 16 divisors (see below), whose sum is σ = 136563840. Its totient is φ = 27312624.

The previous prime is 72075139. The next prime is 72075173. The reversal of 72075170 is 7157027.

It is not an unprimeable number, because it can be changed into a prime (72075173) by changing a digit.

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, 189482 + ... + 189861.

It is an arithmetic number, because the mean of its divisors is an integer number (8535240).

Almost surely, 2^72075170 is an apocalyptic number.

72075170 is a deficient number, since it is larger than the sum of its proper divisors (64488670).

72075170 is a wasteful number, since it uses less digits than its factorization.

72075170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379369.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 72075170 is about 8489.7096534569. The cubic root of 72075170 is about 416.1614919417.

The spelling of 72075170 in words is "seventy-two million, seventy-five thousand, one hundred seventy".