164642001 has 8 divisors (see below), whose sum is σ = 220000704. Its totient is φ = 109522320.

The previous prime is 164641963. The next prime is 164642003. The reversal of 164642001 is 100246461.

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

It is not a de Polignac number, because 164642001 - 2⁹ = 164641489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164642003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58141 + ... + 60906.

It is an arithmetic number, because the mean of its divisors is an integer number (27500088).

Almost surely, 2^164642001 is an apocalyptic number.

It is an amenable number.

164642001 is a deficient number, since it is larger than the sum of its proper divisors (55358703).

164642001 is a wasteful number, since it uses less digits than its factorization.

164642001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119511.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 164642001 is about 12831.2899195677. The cubic root of 164642001 is about 548.0836901770.

Adding to 164642001 its reverse (100246461), we get a palindrome (264888462).

The spelling of 164642001 in words is "one hundred sixty-four million, six hundred forty-two thousand, one".