164134393 has 8 divisors (see below), whose sum is σ = 166512960. Its totient is φ = 161770800.

The previous prime is 164134391. The next prime is 164134427. The reversal of 164134393 is 393431461.

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 164134393 - 2¹ = 164134391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164134391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19348 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (20814120).

Almost surely, 2^164134393 is an apocalyptic number.

It is an amenable number.

164134393 is a deficient number, since it is larger than the sum of its proper divisors (2378567).

164134393 is a wasteful number, since it uses less digits than its factorization.

164134393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7487.

The product of its digits is 23328, while the sum is 34.

The square root of 164134393 is about 12811.4945654283. The cubic root of 164134393 is about 547.5198444327.

The spelling of 164134393 in words is "one hundred sixty-four million, one hundred thirty-four thousand, three hundred ninety-three".