164971801 has 16 divisors (see below), whose sum is σ = 178449408. Its totient is φ = 152064000.

The previous prime is 164971783. The next prime is 164971819. The reversal of 164971801 is 108179461.

It is an interprime number because it is at equal distance from previous prime (164971783) and next prime (164971819).

It is a cyclic number.

It is not a de Polignac number, because 164971801 - 2⁵ = 164971769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164971831) 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 15 ways as a sum of consecutive naturals, for example, 285625 + ... + 286201.

It is an arithmetic number, because the mean of its divisors is an integer number (11153088).

Almost surely, 2^164971801 is an apocalyptic number.

It is an amenable number.

164971801 is a deficient number, since it is larger than the sum of its proper divisors (13477607).

164971801 is a wasteful number, since it uses less digits than its factorization.

164971801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 164971801 is about 12844.1348871771. The cubic root of 164971801 is about 548.4494077944.

The spelling of 164971801 in words is "one hundred sixty-four million, nine hundred seventy-one thousand, eight hundred one".