73138186 has 16 divisors (see below), whose sum is σ = 120546720. Its totient is φ = 33004080.

The previous prime is 73138171. The next prime is 73138187. The reversal of 73138186 is 68183137.

It is not an unprimeable number, because it can be changed into a prime (73138187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8901 + ... + 15016.

It is an arithmetic number, because the mean of its divisors is an integer number (7534170).

Almost surely, 2^73138186 is an apocalyptic number.

73138186 is a deficient number, since it is larger than the sum of its proper divisors (47408534).

73138186 is a wasteful number, since it uses less digits than its factorization.

73138186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24069.

The product of its digits is 24192, while the sum is 37.

The square root of 73138186 is about 8552.0866459596. The cubic root of 73138186 is about 418.1974639933.

The spelling of 73138186 in words is "seventy-three million, one hundred thirty-eight thousand, one hundred eighty-six".