164463609 has 8 divisors (see below), whose sum is σ = 219644992. Its totient is φ = 109462320.

The previous prime is 164463583. The next prime is 164463697. The reversal of 164463609 is 906364461.

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

It is not a de Polignac number, because 164463609 - 2⁸ = 164463353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164463709) 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, 42877 + ... + 46554.

It is an arithmetic number, because the mean of its divisors is an integer number (27455624).

Almost surely, 2^164463609 is an apocalyptic number.

It is an amenable number.

164463609 is a deficient number, since it is larger than the sum of its proper divisors (55181383).

164463609 is an equidigital number, since it uses as much as digits as its factorization.

164463609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90047.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 164463609 is about 12824.3365910288. The cubic root of 164463609 is about 547.8856664256.

The spelling of 164463609 in words is "one hundred sixty-four million, four hundred sixty-three thousand, six hundred nine".