72134875 has 16 divisors (see below), whose sum is σ = 91559520. Its totient is φ = 56724000.

The previous prime is 72134873. The next prime is 72134903. The reversal of 72134875 is 57843127.

It is not a de Polignac number, because 72134875 - 2¹ = 72134873 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (72134873) 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 15 ways as a sum of consecutive naturals, for example, 2485 + ... + 12265.

It is an arithmetic number, because the mean of its divisors is an integer number (5722470).

Almost surely, 2^72134875 is an apocalyptic number.

72134875 is a deficient number, since it is larger than the sum of its proper divisors (19424645).

72134875 is an equidigital number, since it uses as much as digits as its factorization.

72134875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9855 (or 9845 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 72134875 is about 8493.2252413321. The cubic root of 72134875 is about 416.2763723007.

The spelling of 72134875 in words is "seventy-two million, one hundred thirty-four thousand, eight hundred seventy-five".