172027001 has 2 divisors, whose sum is σ = 172027002. Its totient is φ = 172027000.

The previous prime is 172026977. The next prime is 172027049. The reversal of 172027001 is 100720271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130759225 + 41267776 = 11435^2 + 6424^2 .

It is a cyclic number.

It is not a de Polignac number, because 172027001 - 2¹⁰ = 172025977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (172027601) 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 as a sum of consecutive naturals, namely, 86013500 + 86013501.

It is an arithmetic number, because the mean of its divisors is an integer number (86013501).

Almost surely, 2^172027001 is an apocalyptic number.

It is an amenable number.

172027001 is a deficient number, since it is larger than the sum of its proper divisors (1).

172027001 is an equidigital number, since it uses as much as digits as its factorization.

172027001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 172027001 is about 13115.9064116820. The cubic root of 172027001 is about 556.1588760211.

Adding to 172027001 its reverse (100720271), we get a palindrome (272747272).

The spelling of 172027001 in words is "one hundred seventy-two million, twenty-seven thousand, one".