164971001 has 4 divisors (see below), whose sum is σ = 177661092. Its totient is φ = 152280912.

The previous prime is 164970989. The next prime is 164971061. The reversal of 164971001 is 100179461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86471401 + 78499600 = 9299^2 + 8860^2 .

It is a cyclic number.

It is not a de Polignac number, because 164971001 - 2¹⁰ = 164969977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164971061) 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, 6345026 + ... + 6345051.

It is an arithmetic number, because the mean of its divisors is an integer number (44415273).

Almost surely, 2^164971001 is an apocalyptic number.

It is an amenable number.

164971001 is a deficient number, since it is larger than the sum of its proper divisors (12690091).

164971001 is a wasteful number, since it uses less digits than its factorization.

164971001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690090.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 164971001 is about 12844.1037445203. The cubic root of 164971001 is about 548.4485212586.

The spelling of 164971001 in words is "one hundred sixty-four million, nine hundred seventy-one thousand, one".