73134209 has 8 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 71170096.

The previous prime is 73134203. The next prime is 73134253. The reversal of 73134209 is 90243137.

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

It is a cyclic number.

It is not a de Polignac number, because 73134209 - 2⁸ = 73133953 is a prime.

It is a super-2 number, since 2×73134209² = 10697225052111362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73134203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4067 + ... + 12759.

It is an arithmetic number, because the mean of its divisors is an integer number (9389520).

Almost surely, 2^73134209 is an apocalyptic number.

It is an amenable number.

73134209 is a deficient number, since it is larger than the sum of its proper divisors (1981951).

73134209 is a wasteful number, since it uses less digits than its factorization.

73134209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 73134209 is about 8551.8541264453. The cubic root of 73134209 is about 418.1898838150.

The spelling of 73134209 in words is "seventy-three million, one hundred thirty-four thousand, two hundred nine".