164175009 has 4 divisors (see below), whose sum is σ = 218900016. Its totient is φ = 109450004.

The previous prime is 164174999. The next prime is 164175017. The reversal of 164175009 is 900571461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164175009 - 2⁸ = 164174753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164175019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27362499 + ... + 27362504.

It is an arithmetic number, because the mean of its divisors is an integer number (54725004).

Almost surely, 2^164175009 is an apocalyptic number.

It is an amenable number.

164175009 is a deficient number, since it is larger than the sum of its proper divisors (54725007).

164175009 is an equidigital number, since it uses as much as digits as its factorization.

164175009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54725006.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 164175009 is about 12813.0796064022. The cubic root of 164175009 is about 547.5650030200.

The spelling of 164175009 in words is "one hundred sixty-four million, one hundred seventy-five thousand, nine".