171002201 has 8 divisors (see below), whose sum is σ = 181498824. Its totient is φ = 160554240.

The previous prime is 171002189. The next prime is 171002233. The reversal of 171002201 is 102200171.

It can be written as a sum of positive squares in 4 ways, for example, as 29986576 + 141015625 = 5476^2 + 11875^2 .

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 171002201 - 2⁶ = 171002137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171002801) 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, 4790 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (22687353).

Almost surely, 2^171002201 is an apocalyptic number.

It is an amenable number.

171002201 is a deficient number, since it is larger than the sum of its proper divisors (10496623).

171002201 is a wasteful number, since it uses less digits than its factorization.

171002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24331.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 171002201 is about 13076.7809876896. The cubic root of 171002201 is about 555.0522916939.

Adding to 171002201 its reverse (102200171), we get a palindrome (273202372).

The spelling of 171002201 in words is "one hundred seventy-one million, two thousand, two hundred one".