164201569 has 8 divisors (see below), whose sum is σ = 190735808. Its totient is φ = 138436560.

The previous prime is 164201551. The next prime is 164201573. The reversal of 164201569 is 965102461.

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 164201569 - 2⁵ = 164201537 is a prime.

It is a super-2 number, since 2×164201569² = 53924310524123522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164201519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191847 + ... + 192700.

It is an arithmetic number, because the mean of its divisors is an integer number (23841976).

Almost surely, 2^164201569 is an apocalyptic number.

It is an amenable number.

164201569 is a deficient number, since it is larger than the sum of its proper divisors (26534239).

164201569 is an equidigital number, since it uses as much as digits as its factorization.

164201569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384615.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 164201569 is about 12814.1160054059. The cubic root of 164201569 is about 547.5945295242.

The spelling of 164201569 in words is "one hundred sixty-four million, two hundred one thousand, five hundred sixty-nine".