73140009 has 8 divisors (see below), whose sum is σ = 100155840. Its totient is φ = 47442096.

The previous prime is 73139971. The next prime is 73140013. The reversal of 73140009 is 90004137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73140009 - 2⁸ = 73139753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73140019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329349 + ... + 329570.

It is an arithmetic number, because the mean of its divisors is an integer number (12519480).

Almost surely, 2^73140009 is an apocalyptic number.

It is an amenable number.

73140009 is a deficient number, since it is larger than the sum of its proper divisors (27015831).

73140009 is a wasteful number, since it uses less digits than its factorization.

73140009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658959.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 73140009 is about 8552.1932274710. The cubic root of 73140009 is about 418.2009385469.

The spelling of 73140009 in words is "seventy-three million, one hundred forty thousand, nine".