172162027 has 2 divisors, whose sum is σ = 172162028. Its totient is φ = 172162026.

The previous prime is 172162019. The next prime is 172162031. The reversal of 172162027 is 720261271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172162027 - 2³ = 172162019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172161986 and 172162004.

It is not a weakly prime, because it can be changed into another prime (172162087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86081013 + 86081014.

It is an arithmetic number, because the mean of its divisors is an integer number (86081014).

Almost surely, 2^172162027 is an apocalyptic number.

172162027 is a deficient number, since it is larger than the sum of its proper divisors (1).

172162027 is an equidigital number, since it uses as much as digits as its factorization.

172162027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 172162027 is about 13121.0528159900. The cubic root of 172162027 is about 556.3043498298.

The spelling of 172162027 in words is "one hundred seventy-two million, one hundred sixty-two thousand, twenty-seven".