164735309 has 8 divisors (see below), whose sum is σ = 165899712. Its totient is φ = 163575360.

The previous prime is 164735299. The next prime is 164735317. The reversal of 164735309 is 903537461.

It is a happy number.

164735309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 164735309 - 2⁴ = 164735293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164735009) 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, 105992 + ... + 107534.

It is an arithmetic number, because the mean of its divisors is an integer number (20737464).

Almost surely, 2^164735309 is an apocalyptic number.

It is an amenable number.

164735309 is a deficient number, since it is larger than the sum of its proper divisors (1164403).

164735309 is a wasteful number, since it uses less digits than its factorization.

164735309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 164735309 is about 12834.9253601258. The cubic root of 164735309 is about 548.1872096003.

The spelling of 164735309 in words is "one hundred sixty-four million, seven hundred thirty-five thousand, three hundred nine".